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Complete Multivitamin

Bayer One A Day Men's 50+
4.7
★ ★ ★ ★ ★
(3552 ratings)
Iodine 150 mcg
Manganese 4.2 mg
Zinc 24 mg
Molybdenum 90 mcg
Copper 2.2 mg
Selenium 117 mcg
Chromium 180 mcg
Product Image
Score77
Broad iron-free coverage is convenient for older men, but vague form disclosure and a high zinc amount are important trade-offs.
How scoring works
Quantity:65 Tablet(s) • (65 servings)
Goals:
General Health
Immunity
Energy
Bone Health
Detoxification

Score 77

Broad iron-free coverage is convenient for older men, but vague form disclosure and a high zinc amount are important trade-offs.
How scoring works
$9.97($0.15 per serving)
Vitacost
$ 10.80
Walmart
$ 9.97
Report prices

Analysis

The formula covers vitamins A through K, B vitamins, iodine, magnesium, zinc, selenium, copper, manganese, chromium, and molybdenum. Its iron-free design and once-daily format align well with many men over 50.

Most nutrient chemical forms are not identified in the supplied data, so absorption quality cannot be compared reliably. Calcium and magnesium are modest, while zinc is high enough to make supplement stacking a concern.

Older men seeking broad maintenance coverage and convenience are the intended fit. Those who want premium mineral forms or meaningful calcium and magnesium amounts will need a different product or separate sources.

Who is it for
  • Men over 50 seeking daily nutrient coverage
  • People who prefer an iron-free multivitamin
  • Users wanting a once-daily tablet
Best for
  • General micronutrient maintenance
  • Vitamin D and B-vitamin coverage
  • Iron-free convenience

Pros

  • Broad vitamin and trace-mineral panel
  • Iron-free for the intended audience
  • No proprietary active blend

Cons

  • Most ingredient forms are not specified
  • Calcium and magnesium are modest
  • Zinc is substantial for daily use

Warnings

  • The 24 mg zinc amount should not be stacked with separate zinc long term because excess intake can disturb copper balance.
  • Vitamin K can alter warfarin management, so users of vitamin K antagonists need consistent intake and clinical monitoring.
  • Iodine can require individualized use in people with thyroid disease or those taking thyroid medication.

Nutrient quality

78 High impact

Basic, unspecified, or hidden forms limit ingredient quality. The core selection remains reasonably aligned with its purpose.

.

Ingredient transparency

75 High impact

Most active amounts are clearly disclosed. Missing directions and inactive ingredients keep the label information incomplete.

.

Customer satisfaction

69 High impact

The supplied average is strong and rests on a substantial review count. No review text was provided to assess recurring complaints or firsthand experiences.

.

Value for money

85 Highest impact

Serving efficiency is excellent for the disclosed formula. A focused active profile supports value.

.
Report analysis

Goals

General Health
Impact
Highest effect
A- Goal FitB- Strength of SupportB+ CoverageA- Formula Quality
Folate · 665 mcg DFEVitamin B12 · 25 mcgVitamin D · 17.5 mcgMagnesium · 110 mgVitamin K · 20 mcgSelenium · 117 mcgZinc · 24 mgVitamin C · 120 mg

The vitamin and mineral range is well suited to broad nutritional maintenance for older men. Zinc and selenium are supplied in substantial amounts alongside practical daily vitamin coverage.

Most chemical forms are not identified, so absorption and tolerance are difficult to assess. Calcium and magnesium remain partial contributions despite the broad label.

Study evidence
Magnesium Supportive 114 studies
Selenium Supportive 70 studies
Zinc Supportive 60 studies
Immunity
Impact
Highest effect
A- Goal FitB- Strength of SupportB+ CoverageA- Formula Quality
Magnesium · 110 mgVitamin C · 120 mgZinc · 24 mgVitamin A · 940 mcgVitamin D · 17.5 mcgSelenium · 117 mcg

Substantial zinc with vitamins A, C, and D plus selenium supports several immune pathways. The streamlined nutrient list is practical for maintenance use.

Most chemical forms are not identified, and vitamin C plus vitamin D remain moderate rather than targeted amounts. The formula therefore provides broad maintenance support instead of a dedicated immune intervention.

Study evidence
Selenium Mixed 37 studies
Vitamin C Supportive 53 studies
Vitamin D Supportive 85 studies
Zinc Supportive 73 studies
Impact
High effect
B Goal FitC- Strength of SupportB- CoverageA- Formula Quality
Iodine · 150 mcgVitamin D · 17.5 mcgVitamin B5 · 15 mgMagnesium · 110 mgRiboflavin · 3.4 mgThiamin · 4.5 mgVitamin B12 · 25 mcg

B vitamins and iodine support routine fuel conversion and thyroid-related metabolism. The age-focused multivitamin is relevant but not designed to produce acute alertness or stamina.

Iodine reaches a useful maintenance amount, while B12 and magnesium remain below targeted energy levels. The label gives exact amounts but omits most chemical forms.

Study evidence
Iodine Adverse 3 studies
Magnesium Supportive 4 studies
Bone Health
Impact
High effect
B- Goal FitC- Strength of SupportC+ CoverageB- Formula Quality
Vitamin K · 20 mcgMagnesium · 110 mgCalcium · 120 mgVitamin D · 17.5 mcgCopper · 2.2 mgManganese · 4.2 mgZinc · 24 mgVitamin C · 120 mg

Vitamin D, calcium, magnesium, zinc, copper, and manganese provide a practical base of bone-related nutrients. The trace-mineral amounts are more substantial than the structural-mineral contribution.

Calcium, magnesium, and vitamin K are modest, and the label does not identify most mineral forms. It is a focused general multivitamin but only partial support for skeletal needs.

Study evidence
Calcium Supportive 144 studies
Copper Disputed 20 studies
Magnesium Supportive 48 studies
Manganese Adverse 12 studies
Vitamin D Supportive 202 studies
Vitamin K Supportive 78 studies
Zinc Supportive 33 studies
Detoxification
Impact
High effect
C+ Goal FitC- Strength of SupportC CoverageB Formula Quality
Folate · 665 mcg DFEVitamin B12 · 25 mcgVitamin B6 · 6 mgMolybdenum · 90 mcgSelenium · 117 mcgMagnesium · 110 mgVitamin E · 11.4 mgZinc · 24 mgVitamin C · 120 mgRiboflavin · 3.4 mg

Molybdenum, selenium, zinc, vitamin C, and B vitamins provide useful foundational support for several clearance-related enzyme systems. The product remains a general multivitamin and does not contain concentrated liver-support ingredients.

Molybdenum and zinc reach useful amounts, while selenium supports antioxidant enzymes. Undisclosed chemical forms for the goal-relevant minerals limit confidence in absorption and ingredient quality.

Study evidence
Molybdenum Adverse 1 study
Selenium Supportive 10 studies
Vitamin C Supportive 9 studies
Zinc Supportive 30 studies
Testosterone Support
Impact
Moderate effect
C Goal FitC- Strength of SupportD+ CoverageC+ Formula Quality
Magnesium · 110 mgZinc · 24 mgVitamin D · 17.5 mcg

A robust zinc amount with vitamin D, magnesium, and B6 provides a useful foundation for normal hormone production. The formula is most likely to help when one of those nutrients is inadequate rather than raise testosterone in someone with sufficient status.

Zinc reaches a meaningful maintenance level and is balanced with copper. Missing mineral and vitamin forms limit confidence in absorption, while no stress-support or free-hormone botanical is present.

Study evidence
Magnesium Disputed 5 studies
Vitamin D Supportive 56 studies
Zinc Disputed 7 studies

Ingredients

IngredientAmount per serving
Vitamin A (Beta-Carotene)
940 mcg
Vitamin C
120 mg
Vitamin D
17.5 mcg
Vitamin E
11.4 mg
Vitamin K
20 mcg
Thiamine (Vitamin B1)
4.5 mg
Riboflavin (Vitamin B2)
3.4 mg
Niacin
20 mg
Vitamin B6
6 mg
Folate
665 mcg DFE
Vitamin B12
25 mcg
Biotin
30 mcg
Pantothenic Acid
15 mg
Calcium
120 mg
Iodine
150 mcg
Magnesium
110 mg
Zinc
24 mg
Selenium
117 mcg
Copper
2.2 mg
Manganese
4.2 mg
Chromium
180 mcg
Molybdenum
90 mcg
Lycopene
370 mcg
Men 18–50
Report overview
Iodine · 150 mcg OverallScore85
C Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The iodine amount is stated, but its unidentified source prevents a confident absorption assessment. The 150 mcg serving supports daily maintenance and stays below the upper limit, with elemental intake clearly stated. Very low serving cost creates excellent iodine value despite the broader formula.

Manganese · 4.2 mg OverallScore60
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The 4.2 mg amount reaches the preferred range, but the chemical form of manganese is not supplied. Elemental weight is clear and remains comfortably below the upper limit. A low serving cost provides strong value for the dose.

Zinc · 24 mg OverallScore55
F Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyB+ Value
+1

The 24 mg amount supports daily maintenance, but the undisclosed zinc form prevents assessment of absorption and stomach tolerance. The one-tablet serving is simple, and copper is included at this moderate dose. Cost efficiency is good, though weak source transparency limits confidence in ingredient quality.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta-analysis.
    Manoj P; Derwin R; George S · International journal of older people nursing · 2023
    Meta-analysis12,620 participants7 studies pooledBone Health forCalcium
  2. Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
    Storm D; Eslin R; Porter ES; Musgrave K; Vereault D; Patton C; Kessenich C; Mohan S; Chen T; Holick MF; Rosen CJ · The Journal of clinical endocrinology and metabolism · 1998
    Randomized trial60 participantsBone Health forCalcium
  3. The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
    Prince R; Devine A; Dick I; Criddle A; Kerr D; Kent N; Price R; Randell A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 1995
    Randomized trial168 participantsBone Health forCalcium
  4. The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
    Rajatanavin R; Chailurkit L; Saetung S; Thakkinstian A; Nimitphong H · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial404 participantsBone Health forCalcium
  5. Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
    Bonjour JP; Carrie AL; Ferrari S; Clavien H; Slosman D; Theintz G; Rizzoli R · The Journal of clinical investigation · 1997
    Randomized trial149 participantsBone Health forCalcium
  6. The Association between Dietary and Circulating Copper Levels and Osteoporosis: a Scoping Review.
    Ju Y; Xiong W; Pang Y; Chen Z; Hou J; Zheng S; Li Z; Liu T; Xia H; Xia M; Zhong Y; Li J; Jiang X · Biological trace element research · 2026
    Scoping review18 studies pooledBone Health forCopper
  7. Association between dietary copper, iron, zinc, selenium intake and osteopenia or osteoporosis in elderly hypertensive patients: a retrospective cohort study.
    Chen M; Jia L; Gao R · Frontiers in nutrition · 2024
    Cohort study5,286 participantsBone Health forCopper
  8. Associations of dietary copper intake with total bone mineral density and lumbar spine bone mineral density in American adults.
    Hu M; Wang Z; Li C; Zheng Y; Hu J · Medicine · 2025
    Cross-sectional studyBone Health forCopper
  9. The association between dietary mineral intake and bone mineral density: a cross-sectional study.
    Wei M; Wei J; Huang S · Journal of health, population, and nutrition · 2025
    Cross-sectional study11,520 participantsBone Health forCopper
  10. Association between dietary copper intake and bone mineral density in children and adolescents aged 8-19 years: A cross-sectional study.
    Cui A; Yan J; Li H; Fan Z; Wei X; Wang H; Zhuang Y · PloS one · 2024
    Cross-sectional study6,965 participantsBone Health forCopper
  11. Association between Serum Magnesium and Fractures: A Systematic Review and Meta-Analysis of Observational Studies.
    Dominguez LJ; Veronese N; Ciriminna S; Pérez-Albela JL; Vásquez-López VF; Rodas-Regalado S; Di Bella G; Parisi A; Tagliaferri F; Barbagallo M · Nutrients · 2023
    Meta-analysis119,755 participants4 studies pooledBone Health forMagnesium
  12. Bioabsorbable Magnesium-Based Materials Potential and Safety in Bone Surgery: A Systematic Review.
    Hung CH; Kwok YC; Yip J; Wong HH; Leung YY · Craniomaxillofacial trauma & reconstruction · 2025
    Systematic review386 participants8 studies pooledBone Health forMagnesium
  13. Vascularized bone grafting fixed by biodegradable magnesium screw for treating osteonecrosis of the femoral head.
    Zhao D; Huang S; Lu F; Wang B; Yang L; Qin L; Yang K; Li Y; Li W; Wang W; Tian S; Zhang X; Gao W; Wang Z; Zhang Y; Xie X; Wang J; Li J · Biomaterials · 2016
    Randomized trial48 participantsBone Health forMagnesium
  14. An update on magnesium and bone health.
    Rondanelli M; Faliva MA; Tartara A; Gasparri C; Perna S; Infantino V; Riva A; Petrangolini G; Peroni G · Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2022
    Narrative reviewBone Health forMagnesium
  15. Sex-specific differences in the association of magnesium intake with femoral neck bone mineral density among older adults.
    Wang B; Tan X; Yao X; Zhu Z · Endocrine connections · 2025
    Cross-sectional study1,343 participantsBone Health forMagnesium
  16. Risk of Environmental Chemicals on Bone Fractures Is Independent of Low Bone Mass in US Adults: Insights from 2017 to 2018 NHANES.
    Ling R; Ai Y; Chen C; Zhang J; Zou Z; Cheng S; Li C; Li X; Wang B · Metabolites · 2023
    Cross-sectional study2,640 participantsBone Health forManganese
  17. The Manganese-Bone Connection: Investigating the Role of Manganese in Bone Health.
    Taskozhina G; Batyrova G; Umarova G; Issanguzhina Z; Kereyeva N · Journal of clinical medicine · 2024
    Narrative reviewBone Health forManganese
  18. Associations of multiple metals with bone mineral density: A population-based study in US adults.
    Wei MH; Cui Y; Zhou HL; Song WJ; Di DS; Zhang RY; Huang Q; Liu JA; Wang Q · Chemosphere · 2021
    Cross-sectional studyBone Health forManganese
  19. Sex-specific associations of urinary mixed-metal concentrations with femoral bone mineral density among older people: an NHANES (2017-2020) analysis.
    Li H; Li G; Yi M; Zhou J; Deng Y; Huang Y; He S; Meng X; Liu L · Frontiers in public health · 2024
    Cross-sectional study31 participantsBone Health forManganese
  20. Relationship between blood manganese and bone mineral density and bone mineral content in adults: A population-based cross-sectional study.
    Wang C; Zhu Y; Long H; Ou M; Zhao S · PloS one · 2022
    Cross-sectional study9,732 participantsBone Health forManganese
  21. Pregnancy vitamin D supplementation and offspring bone mineral density in childhood follow-up of a randomized controlled trial.
    Moon RJ; D' Angelo S; Curtis EM; Ward KA; Crozier SR; Schoenmakers I; Javaid MK; Bishop NJ; Godfrey KM; Cooper C; Harvey NC; MAVIDOS Trial Group · The American journal of clinical nutrition · 2024
    Randomized trial454 participantsBone Health forVitamin D
  22. Vitamin D analogs and bone: preclinical and clinical studies with eldecalcitol.
    Matsumoto T; Takano T; Saito H; Takahashi F · BoneKEy reports · 2014
    Narrative reviewBone Health forVitamin D
  23. Efficacy of vitamin D fortified foods on bone mineral density and serum bone biomarkers: A systematic review and meta-analysis of interventional studies.
    Tangestani H; Djafarian K; Emamat H; Arabzadegan N; Shab-Bidar S · Critical reviews in food science and nutrition · 2020
    Meta-analysis1,786 participants20 studies pooledBone Health forVitamin D
  24. Cholecalciferol Supplementation Attenuates Bone Loss in Incident Kidney Transplant Recipients: A Prespecified Secondary Endpoint Analysis of a Randomized Controlled Trial.
    Tsujita M; Doi Y; Obi Y; Hamano T; Tomosugi T; Futamura K; Okada M; Hiramitsu T; Goto N; Isaka Y; Takeda A; Narumi S; Watarai Y · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022
    Randomized trial193 participantsBone Health forVitamin D
  25. Vitamin D supplementation and bone health in post-menopausal women: a 24-month randomized controlled intervention with enhanced bioavailability formulations.
    Rasool N; Munir Y · European journal of clinical nutrition · 2026
    Randomized trial612 participantsBone Health forVitamin D
  26. Vitamin K and the prevention of fractures: systematic review and meta-analysis of randomized controlled trials.
    Cockayne S; Adamson J; Lanham-New S; Shearer MJ; Gilbody S; Torgerson DJ · Archives of internal medicine · 2006
    Meta-analysis13 studies pooledBone Health forVitamin K
  27. Three-year low-dose menaquinone-7 supplementation helps decrease bone loss in healthy postmenopausal women.
    Knapen MH; Drummen NE; Smit E; Vermeer C; Theuwissen E · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial244 participantsBone Health forVitamin K
  28. Effect of combined administration of vitamin D3 and vitamin K2 on bone mineral density of the lumbar spine in postmenopausal women with osteoporosis.
    Iwamoto J; Takeda T; Ichimura S · Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association · 2001
    Randomized trial92 participantsBone Health forVitamin K
  29. Efficacy and safety of vitamin K2 for postmenopausal women with osteoporosis at a long-term follow-up: meta-analysis and systematic review.
    Zhou M; Han S; Zhang W; Wu D · Journal of bone and mineral metabolism · 2022
    Meta-analysis6,853 participants9 studies pooledBone Health forVitamin K
  30. Low-dose vitamin K2 (MK-4) supplementation for 12 months improves bone metabolism and prevents forearm bone loss in postmenopausal Japanese women.
    Koitaya N; Sekiguchi M; Tousen Y; Nishide Y; Morita A; Yamauchi J; Gando Y; Miyachi M; Aoki M; Komatsu M; Watanabe F; Morishita K; Ishimi Y · Journal of bone and mineral metabolism · 2015
    Randomized trial48 participantsBone Health forVitamin K
  31. Increased incidence of fractures in middle-aged and elderly men with low intakes of phosphorus and zinc.
    Elmståhl S; Gullberg B; Janzon L; Johnell O; Elmståhl B · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 1999
    Cohort study6,576 participantsBone Health forZinc
  32. Zinc Supplementation Increases Procollagen Type 1 Amino-Terminal Propeptide in Premenarcheal Girls: A Randomized Controlled Trial.
    Berger PK; Pollock NK; Laing EM; Chertin V; Bernard PJ; Grider A; Shapses SA; Ding KH; Isales CM; Lewis RD · The Journal of nutrition · 2016
    Randomized trial147 participantsBone Health forZinc
  33. Randomized controlled trial of prenatal zinc supplementation and fetal bone growth.
    Merialdi M; Caulfield LE; Zavaleta N; Figueroa A; Costigan KA; Dominici F; Dipietro JA · The American journal of clinical nutrition · 2004
    Randomized trial242 participantsBone Health forZinc
  34. The effects of zinc supplementation on serum zinc, alkaline phosphatase activity and fracture healing of bones.
    Sadighi A; Roshan MM; Moradi A; Ostadrahimi A · Saudi medical journal · 2009
    Randomized trial60 participantsBone Health forZinc
  35. Is Zinc an Important Trace Element on Bone-Related Diseases and Complications? A Meta-analysis and Systematic Review from Serum Level, Dietary Intake, and Supplementation Aspects.
    Ceylan MN; Akdas S; Yazihan N · Biological trace element research · 2021
    Meta-analysis40 studies pooledBone Health forZinc
  36. Human molybdenum exposure risk in industrial regions of China: New critical effect indicators and reference dose.
    Kuang HX; Li MY; Zeng XW; Chen D; Zhou Y; Zheng T; Xiang MD; Wu QZ; Chen XC; Dong GH; Yu YJ · Ecotoxicology and environmental safety · 2024
    Cross-sectional study2,267 participantsDetoxification forMolybdenum
  37. Supplementation with selenium can influence nausea, fatigue, physical, renal, and liver function of children and adolescents with cancer.
    Vieira ML; Fonseca FL; Costa LG; Beltrame RL; Chaves CM; Cartum J; Alves SI; Azzalis LA; Junqueira VB; Pereria EC; Rocha KC · Journal of medicinal food · 2015
    Randomized trialDetoxification forSelenium
  38. [Selenium and oxidative stress in cancer patients].
    Gorozhanskaia ÉG; Sviridova SP; Dobrovol'skaia MM; Zybrikhina GN; Kashnia ShR · Biomeditsinskaia khimiia · 2014
    Single-arm trial40 participantsDetoxification forSelenium
  39. Comprehensive Insights into the Health Effects of Selenium Exposure and Supplementation Among the Chinese Community Middle-Aged and Elderly: a Combined Retrospective Cohort Study and Intervention Study.
    Li C; Peng X; Zheng J; Shi K; Qin L; Yang Q; Wang Z; Liu Y; Huang L · Biological trace element research · 2024
    Other40 participantsDetoxification forSelenium
  40. Heavy metals and metalloids exposure and liver function in Chinese adults - A nationally representative cross-sectional study.
    Wang S; Lyu Y; Ji S; Liu N; Wu B; Zhao F; Li Z; Qu Y; Zhu Y; Xie L; Li Y; Zhang Z; Song H; Hu X; Qiu Y; Zheng X; Zhang W; Yang Y; Li F; Cai J; Zhu Y; Cao Z; Tan F; Shi X · Environmental research · 2024
    Cross-sectional study9,445 participantsDetoxification forSelenium
  41. Selenium-Biofortified Strawberries Improve Glucose Homeostasis and Hepatic Function: A 30-Day Randomized Controlled Trial in Healthy Adults.
    Vasto S; Di Rosa L; Ferrantelli V; Fiore AS; Giordano CP; Cannizzaro A; Sabatino L; Macaluso A; Caldarella R; Caldara GF; Baldassano S · Nutrients · 2026
    Randomized trial35 participantsDetoxification forSelenium
  42. Vitamin C supplementation ameliorates liver function profile and antiviral treatment response in Hepatitis C patients.
    Nayila I; Javed MS; Khan MA; Hussain G; Raza Naqvi SA; Ali S; Jabeen Z; Shahnawaz S; Akram R; Iman T; Hassan Dogar MZ; Malik SA · Pakistan journal of pharmaceutical sciences · 2022
    Non-randomized trial200 participantsDetoxification forVitamin C
  43. Effect of ascorbic acid-rich diet on in vivo-induced oxidative stress.
    Alleva R; Di Donato F; Strafella E; Staffolani S; Nocchi L; Borghi B; Pignotti E; Santarelli L; Tomasetti M · The British journal of nutrition · 2012
    Non-randomized trial46 participantsDetoxification forVitamin C
  44. Dietary Vitamin C Intake Is Associated With Improved Liver Function and Glucose Metabolism in Chinese Adults.
    Luo X; Zhang W; He Z; Yang H; Gao J; Wu P; Ma ZF · Frontiers in nutrition · 2022
    Observational study8,307 participantsDetoxification forVitamin C
  45. Plasma ascorbate deficiency is associated with impaired reduction of sulfamethoxazole-nitroso in HIV infection.
    Trepanier LA; Yoder AR; Bajad S; Beckwith MD; Bellehumeur JL; Graziano FM · Journal of acquired immune deficiency syndromes (1999) · 2005
    Observational studyDetoxification forVitamin C
  46. Roles of endogenous ascorbate and glutathione in the cellular reduction and cytotoxicity of sulfamethoxazole-nitroso.
    Lavergne SN; Kurian JR; Bajad SU; Maki JE; Yoder AR; Guzinski MV; Graziano FM; Trepanier LA · Toxicology · 2006
    Clinical trial53 participantsDetoxification forVitamin C
  47. [Therapy of Wilson disease].
    Smolarek C; Stremmel W · Zeitschrift fur Gastroenterologie · 1999
    Narrative reviewDetoxification forZinc
  48. Efficacy of Zinc Supplement in Minimal hepatic Encephalopathy: A prospective, Randomized Controlled Study (Zinc-MHE Trial).
    Janyajirawong R; Vilaichone RK; Sethasine S · Asian Pacific journal of cancer prevention : APJCP · 2021
    Randomized trial69 participantsDetoxification forZinc
  49. Effect of zinc on liver cirrhosis with hyperammonemia: a preliminary randomized, placebo-controlled double-blind trial.
    Katayama K; Saito M; Kawaguchi T; Endo R; Sawara K; Nishiguchi S; Kato A; Kohgo H; Suzuki K; Sakaida I; Ueno Y; Habu D; Ito T; Moriwaki H; Suzuki K · Nutrition (Burbank, Los Angeles County, Calif.) · 2015
    Randomized trial18 participantsDetoxification forZinc
  50. Effects of low dose zinc supplementation on biochemical markers in non-alcoholic cirrhosis: a randomized clinical trial.
    Somi MH; Rezaeifar P; Ostad Rahimi A; Moshrefi B · Archives of Iranian medicine · 2012
    Randomized trial60 participantsDetoxification forZinc
  51. Correlation of Serum Zinc Levels with Hepatic Encephalopathy Severity in Patients with Decompensated Liver Cirrhosis: A Prospective Observational Study from Egypt.
    Semeya AA; Elgamal R; Othman AAA · Biological trace element research · 2025
    Observational study200 participantsDetoxification forZinc
  52. Association of radioactive iodine treatment with survivorship symptoms and primary care utilisation in women of reproductive age with thyroid cancer: a retrospective cohort study.
    Devanarayan P; Hartman M; Partin M · Family medicine and community health · 2026
    Cohort study10,882 participantsEnergy forIodine
  53. Energy level and fatigue after surgery for thyroid cancer: A population-based study of patient-reported outcomes.
    Hughes DT; Reyes-Gastelum D; Kovatch KJ; Hamilton AS; Ward KC; Haymart MR · Surgery · 2020
    Cohort study2,584 participantsEnergy forIodine
  54. Health-Related Quality of Life in Differentiated Thyroid Cancer Survivors: A Cross-Sectional Study From Turkey.
    Gültekin A; Kahraman MY; Şengöz T; Şimşek FS · Head & neck · 2026
    Cross-sectional study202 participantsEnergy forIodine
  55. Magnesium-L-threonate improves sleep quality and daytime functioning in adults with self-reported sleep problems: A randomized controlled trial.
    Hausenblas HA; Lynch T; Hooper S; Shrestha A; Rosendale D; Gu J · Sleep medicine: X · 2025
    Randomized trial80 participantsEnergy forMagnesium
  56. Total magnesium intake and risk of frailty in older women.
    Struijk EA; Fung TT; Bischoff-Ferrari HA; Willett WC; Lopez-Garcia E · Journal of cachexia, sarcopenia and muscle · 2024
    Cohort study81,524 participantsEnergy forMagnesium
  57. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  58. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  59. Perioperative systemic magnesium to minimize postoperative pain: a meta-analysis of randomized controlled trials.
    De Oliveira GS; Castro-Alves LJ; Khan JH; McCarthy RJ · Anesthesiology · 2013
    Meta-analysis1,257 participants20 studies pooledGeneral Health forMagnesium
  60. Long-term outcome after intravenous magnesium sulphate in suspected acute myocardial infarction: the second Leicester Intravenous Magnesium Intervention Trial (LIMIT-2).
    Woods KL; Fletcher S · Lancet (London, England) · 1994
    Randomized trial2,316 participantsGeneral Health forMagnesium
  61. Association of magnesium sulfate use with mortality in critically ill patients with sepsis: a retrospective propensity score-matched cohort study.
    Gu WJ; Duan XJ; Liu XZ; Cen Y; Tao LY; Lyu J; Yin HY · British journal of anaesthesia · 2023
    Cohort study10,999 participantsGeneral Health forMagnesium
  62. Hypomagnesemia and Mortality in Incident Hemodialysis Patients.
    Li L; Streja E; Rhee CM; Mehrotra R; Soohoo M; Brunelli SM; Kovesdy CP; Kalantar-Zadeh K · American journal of kidney diseases : the official journal of the National Kidney Foundation · 2016
    Cohort study9,359 participantsGeneral Health forMagnesium
  63. The effects of magnesium supplementation on abnormal uterine bleeding, alopecia, quality of life, and acne in women with polycystic ovary syndrome: a randomized clinical trial.
    Jaripur M; Ghasemi-Tehrani H; Askari G; Gholizadeh-Moghaddam M; Clark CCT; Rouhani MH · Reproductive biology and endocrinology : RB&E · 2022
    Randomized trial64 participantsGeneral Health forMagnesium
  64. Associations of selenium status with all-cause and cause-specific mortality: a systematic review and meta-analysis of cohort studies.
    Cui Z; Xie R; Lu X; Schomburg L; Brenner H; Schöttker B · Redox biology · 2025
    Meta-analysis95 participants20 studies pooledGeneral Health forSelenium
  65. Dietary Antioxidants, Circulating Antioxidant Concentrations, Total Antioxidant Capacity, and Risk of All-Cause Mortality: A Systematic Review and Dose-Response Meta-Analysis of Prospective Observational Studies.
    Jayedi A; Rashidy-Pour A; Parohan M; Zargar MS; Shab-Bidar S · Advances in nutrition (Bethesda, Md.) · 2019
    Meta-analysis507,251 participants41 studies pooledGeneral Health forSelenium
  66. The efficacy and safety of selenium supplementation versus placebo in the treatment of Graves' orbitopathy: A systematic review and meta-analysis of randomised controlled trials.
    Sharabati I; Qafesha RM; Hindawi MD; Amro S; Ayesh BM · Clinical endocrinology · 2024
    Meta-analysis4 studies pooledGeneral Health forSelenium
  67. Associations of plasma metal concentrations with the risks of all-cause and cardiovascular disease mortality in Chinese adults.
    Shi L; Yuan Y; Xiao Y; Long P; Li W; Yu Y; Liu Y; Liu K; Wang H; Zhou L; Yang H; Li X; He M; Wu T · Environment international · 2021
    Cohort study6,155 participantsGeneral Health forSelenium
  68. Updates on clinical studies of selenium supplementation in radiotherapy.
    Puspitasari IM; Abdulah R; Yamazaki C; Kameo S; Nakano T; Koyama H · Radiation oncology (London, England) · 2015
    Systematic review16 studies pooledGeneral Health forSelenium
  69. Effectiveness of sodium bicarbonate and zinc chloride mouthwashes in the treatment of oral mucositis and quality of life in patients with cancer under chemotherapy.
    Mohammadi F; Oshvandi K; Kamallan SR; Khazaei S; Ranjbar H; Ahmadi-Motamayel F; Gillespie M; Jenabi E; Vafaei SY · Nursing open · 2022
    Randomized trial144 participantsGeneral Health forZinc
  70. Zinc supplementation in young children with acute diarrhea in India.
    Sazawal S; Black RE; Bhan MK; Bhandari N; Sinha A; Jalla S · The New England journal of medicine · 1995
    Randomized trial937 participantsGeneral Health forZinc
  71. Associations of mortality with ocular disorders and an intervention of high-dose antioxidants and zinc in the Age-Related Eye Disease Study: AREDS Report No. 13.
    Clemons TE; Kurinij N; Sperduto RD; AREDS Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2004
    Randomized trial4,753 participantsGeneral Health forZinc
  72. Effects of zinc and probiotic co-supplementation on inflammation, gastrointestinal symptoms, quality of life, and mood in irritable bowel syndrome patients.
    Rezazadegan M; Soheilipour M; Amani R · Scientific reports · 2026
    Randomized trial84 participantsGeneral Health forZinc
  73. Effect of zinc sulfate supplementation on premenstrual syndrome and health-related quality of life: Clinical randomized controlled trial.
    Siahbazi S; Behboudi-Gandevani S; Moghaddam-Banaem L; Montazeri A · The journal of obstetrics and gynaecology research · 2018
    Randomized trial142 participantsGeneral Health forZinc
  74. The Role of Sesbania grandiflora-Derived Biotin and Bambusa arundinacea-Derived Silica Extracts in Promoting Hair, Skin, and Nail Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Study.
    Patel MN; Maheshvari J; Patel N · Cureus · 2025
    Randomized trial105 participantsHair Health Nail Health forBiotin
  75. Low serum biotinidase activity in children with valproic acid monotherapy.
    Schulpis KH; Karikas GA; Tjamouranis J; Regoutas S; Tsakiris S · Epilepsia · 2001
    Clinical trial125 participantsHair Health forBiotin
  76. Vitamins A, B, C, and D: A Short Review for the Dermatologist.
    Coerdt KM; Goggins CA; Khachemoune A · Alternative therapies in health and medicine · 2021
    Narrative reviewHair Health forBiotin
  77. The Infatuation With Biotin Supplementation: Is There Truth Behind Its Rising Popularity? A Comparative Analysis of Clinical Efficacy versus Social Popularity.
    Soleymani T; Lo Sicco K; Shapiro J · Journal of drugs in dermatology : JDD · 2018
    Narrative reviewHair Health forBiotin
  78. Menkes disease and response to copper histidine: An Indian case series.
    Yoganathan S; Sudhakar SV; Arunachal G; Thomas M; Subramanian A; George R; Danda S · Annals of Indian Academy of Neurology · 2022
    Case series4 participantsHair Health forCopper
  79. Trace element levels in alopecia areata.
    Bhat YJ; Manzoor S; Khan AR; Qayoom S · Indian journal of dermatology, venereology and leprology · 2009
    Case-control study100 participantsHair Health forCopper
  80. UV damage to hair and the effect of antioxidants and metal chelators.
    Millington KR; Marsh JM · International journal of cosmetic science · 2021
    In vitro / ex vivo studyHair Health forCopper
  81. Preserving fibre health: reducing oxidative stress throughout the life of the hair fibre.
    Marsh JM; Davis MG; Lucas RL; Reilman R; Styczynski PB; Li C; Mamak M; McComb DW; Williams RE; Godfrey S; Navqi KR; Chechik V · International journal of cosmetic science · 2016
    In vitro / ex vivo studyHair Health forCopper
  82. Beyond Efficacy: 0.6% Selenium Disulfide Shampoo Matches 2% Ketoconazole for Seborrheic Dermatitis with Superior Cosmesis.
    Farris PK; Barbosa V; Houshman EB; Kovylkina N · Journal of drugs in dermatology : JDD · 2026
    Randomized trial87 participantsHair Health forSelenium
  83. Selenium Disulfide-based shampoo applied for 4 weeks significantly improves dandruff and seborrheic dermatitis.
    Turcu G; Artenie C; Nowicka D; Arenbergerová M; Lazaridou E; Khobzei K; Ataseven A; Part M; Leclerc-Mercier S · European journal of dermatology : EJD · 2023
    Observational study1,407 participantsHair Health forSelenium
  84. A Comparative Randomized Clinical Study Assessing the Efficacy of a 1% Selenium Disulfide-Based Shampoo versus 2% Ketoconazole Shampoo in Subjects with Moderate to Severe Scalp Seborrheic Dermatitis.
    Barbosa V; Melo DF; Vañó-Galván S; Lutchmanen-Kolanthan V; Sant'Anna B; Leclerc-Mercier S; Reygagne P · Skin appendage disorders · 2025
    Randomized trial64 participantsHair Health forSelenium
  85. Changes of serum trace elements level in patients with alopecia areata: A meta-analysis.
    Jin W; Zheng H; Shan B; Wu Y · The Journal of dermatology · 2018
    Meta-analysis764 participantsHair Health forSelenium
  86. Scientific opinion on the tolerable upper intake level for selenium.
    EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA); Turck D; Bohn T; Castenmiller J; de Henauw S; Hirsch-Ernst KI; Knutsen HK; Maciuk A; Mangelsdorf I; McArdle HJ; Peláez C; Pentieva K; Siani A; Thies F; Tsabouri S; Vinceti M; Aggett P; Crous Bou M; Cubadda F; Ciccolallo L; de Sesmaisons Lecarré A; Fabiani L; Titz A; Naska A · EFSA journal. European Food Safety Authority · 2023
    Systematic reviewHair Health forSelenium
  87. Management of hair loss associated with endocrine therapy in patients with breast cancer: an overview.
    Karatas F; Sahin S; Sever AR; Altundag K · SpringerPlus · 2016
    Narrative reviewHair Health forVitamin C
  88. Elucidating causal relationships of diet-derived circulating antioxidants and the risk of non-scarring alopecia: A Mendelian randomization study.
    Ba Y; Shen L; Peng X; Zhang Y; Wang J · Medicine · 2024
    Methods validation study201,019 participantsHair Health forVitamin C
  89. Alterations of plasma antioxidants and mitochondrial DNA mutation in hair follicles of smokers.
    Liu CS; Chen HW; Lii CK; Tsai CS; Kuo CL; Wei YH · Environmental and molecular mutagenesis · 2002
    Observational studyHair Health forVitamin C
  90. Removal of synthetic hair dye using formamidine sulfinic acid and other sulfinate precursors.
    Hawkes JA; Lewis DM; Mama J; Murray J · International journal of cosmetic science · 2026
    Methods validation studyHair Health forVitamin C
  91. A Zinc Sulphate-Resistant Acrodermatitis Enteropathica Patient with a Novel Mutation in SLC39A4 Gene.
    Kilic M; Taskesen M; Coskun T; Gürakan F; Tokatli A; Sivri HS; Dursun A; Schmitt S; Küry S · JIMD reports · 2013
    Case reportHair Health forVitamin C
  92. Increased prevalence of vitamin D deficiency in patients with alopecia areata: a systematic review and meta-analysis.
    Lee S; Kim BJ; Lee CH; Lee WS · Journal of the European Academy of Dermatology and Venereology : JEADV · 2018
    Meta-analysis2,039 participants14 studies pooledHair Health forVitamin D
  93. Intralesional vitamin D3 in treatment of alopecia areata: A randomized controlled clinical trial.
    Rashad AF; Elgamal E; Fouda I · Journal of cosmetic dermatology · 2022
    Randomized trial60 participantsHair Health forVitamin D
  94. Vitamin D and its Analogs in Treatment of Mild to Moderate Alopecia Areata: Systematic Review and Meta-Analysis.
    Alsaati AA; Kaliyadan F; Alsaadoun D; Alzakry LM; Alzabadin RA; Hakami TH; Rubaian NFB · Indian dermatology online journal · 2025
    Meta-analysisHair Health forVitamin D
  95. Topical calcipotriol vs narrowband ultraviolet B in treatment of alopecia areata: a randomized-controlled trial.
    El Taieb MA; Hegazy EM; Ibrahim HM; Osman AB; Abualhamd M · Archives of dermatological research · 2020
    Randomized trial60 participantsHair Health forVitamin D
  96. Serum 25 hydroxyvitamin D in non-scarring alopecia: A systematic review and meta-analysis.
    Chen Y; Dong X; Wang Y; Li Y; Xiong L; Li L · Journal of cosmetic dermatology · 2024
    Meta-analysis10,670 participants23 studies pooledHair Health forVitamin D
  97. The effects of minoxidil, 1% pyrithione zinc and a combination of both on hair density: a randomized controlled trial.
    Berger RS; Fu JL; Smiles KA; Turner CB; Schnell BM; Werchowski KM; Lammers KM · The British journal of dermatology · 2003
    Randomized trial200 participantsHair Health forZinc
  98. Incubatory environment of the scalp impacts pre-emergent hair to affect post-emergent hair cuticle integrity.
    Schwartz JR; Henry JP; Kerr KM; Flagler MJ; Page SH; Redman-Furey N · Journal of cosmetic dermatology · 2018
    Randomized trialHair Health forZinc
  99. A comparison of hair quality and cosmetic acceptance following the use of two anti-dandruff shampoos.
    Draelos ZD; Kenneally DC; Hodges LT; Billhimer W; Copas M; Margraf C · The journal of investigative dermatology. Symposium proceedings · 2006
    Randomized trial40 participantsHair Health forZinc
  100. BMI and levels of zinc, copper in hair, serum and urine of Turkish male patients with androgenetic alopecia.
    Ozturk P; Kurutas E; Ataseven A; Dokur N; Gumusalan Y; Gorur A; Tamer L; Inaloz S · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2015
    Case-control study216 participantsHair Health forZinc
  101. Analysis of serum zinc and copper concentrations in hair loss.
    Kil MS; Kim CW; Kim SS · Annals of dermatology · 2013
    Case-control study342 participantsHair Health forZinc
  102. Effects of selenium supplementation on selenoprotein gene expression and response to influenza vaccine challenge: a randomised controlled trial.
    Goldson AJ; Fairweather-Tait SJ; Armah CN; Bao Y; Broadley MR; Dainty JR; Furniss C; Hart DJ; Teucher B; Hurst R · PloS one · 2011
    Randomized trial119 participantsImmunity forSelenium
  103. Effect of selenium on immune response against hepatitis B vaccine with accelerated method in insulin-dependent diabetes mellitus patients.
    Janbakhsh A; Mansouri F; Vaziri S; Sayad B; Afsharian M; Rahimi M; Shahebrahimi K; Salari F · Caspian journal of internal medicine · 2013
    Randomized trial62 participantsImmunity forSelenium
  104. Chemoprevention trial of human hepatitis with selenium supplementation in China.
    Yu SY; Li WG; Zhu YJ; Yu WP; Hou C · Biological trace element research · 1990
    Non-randomized trial20,847 participantsImmunity forSelenium
  105. Selenium nanoparticles as adjunctive therapy in sepsis: A pilot randomized clinical trial.
    Gu WJ; Huang W; Zhao FZ; Yuan XK; Jin K; Chen JL; Zhang CY; Huang Y; He L; Zhuang H; Yin HY; Chen T · Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 2026
    Randomized trial70 participantsImmunity forSelenium
  106. Selenium supplementation in patients with autoimmune thyroiditis decreases thyroid peroxidase antibodies concentrations.
    Gärtner R; Gasnier BC; Dietrich JW; Krebs B; Angstwurm MW · The Journal of clinical endocrinology and metabolism · 2002
    Randomized trial70 participantsImmunity forSelenium
  107. Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusImmunity forVitamin C
  108. Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
    Sun L; Zhao JH; Fan WY; Feng B; Liu WW; Chen RQ; Ban C; Dang AG; Wang M; Luo KT; Zhou GY; Yu FF; Ba Y · Nutrition reviews · 2024
    Meta-analysis2,334 participants14 studies pooledImmunity forVitamin C
  109. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
    Abioye AI; Bromage S; Fawzi W · BMJ global health · 2021
    Meta-analysisImmunity forVitamin C
  110. New evidence for antioxidant properties of vitamin C.
    Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
    Randomized trial20 participantsImmunity forVitamin C
  111. Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
    Calder PC; Kreider RB; McKay DL · Nutrients · 2025
    Systematic review13 studies pooledImmunity forVitamin C
  112. Vitamin D supplementation to prevent acute respiratory infections: individual participant data meta-analysis.
    Martineau AR; Jolliffe DA; Greenberg L; Aloia JF; Bergman P; Dubnov-Raz G; Esposito S; Ganmaa D; Ginde AA; Goodall EC; Grant CC; Janssens W; Jensen ME; Kerley CP; Laaksi I; Manaseki-Holland S; Mauger D; Murdoch DR; Neale R; Rees JR; Simpson S; Stelmach I; Trilok Kumar G; Urashima M; Camargo CA; Griffiths CJ; Hooper RL · Health technology assessment (Winchester, England) · 2020
    Meta-analysis11,321 participants25 studies pooledImmunity forVitamin D
  113. Association Between Vitamin D and Influenza: Meta-Analysis and Systematic Review of Randomized Controlled Trials.
    Zhu Z; Zhu X; Gu L; Zhan Y; Chen L; Li X · Frontiers in nutrition · 2022
    Meta-analysis4,859 participants10 studies pooledImmunity forVitamin D
  114. Vitamin D3 and deconvoluting a rash.
    Ernst MK; Evans ST; Techner JM; Rothbaum RM; Christensen LF; Onay UV; Biyashev D; Demczuk MM; Nguyen CV; Honda KS; McCormick TS; Tsoi LC; Gudjonsson JE; Cooper KD; Lu KQ · JCI insight · 2023
    Randomized trial28 participantsImmunity forVitamin D
  115. Effect of vitamin D3 supplementation on cellular immunity and inflammatory markers in COVID-19 patients admitted to the ICU.
    Bychinin MV; Klypa TV; Mandel IA; Yusubalieva GM; Baklaushev VP; Kolyshkina NA; Troitsky AV · Scientific reports · 2022
    Randomized trial110 participantsImmunity forVitamin D
  116. Current opinion on the role of vitamin D supplementation in respiratory infections and asthma/COPD exacerbations: A need to establish publication guidelines for overcoming the unpublished data.
    Anitua E; Tierno R; Alkhraisat MH · Clinical nutrition (Edinburgh, Scotland) · 2022
    Meta-analysis50,554 participants65 studies pooledImmunity forVitamin D
  117. Nutrient supplementation for prevention of viral respiratory tract infections in healthy subjects: A systematic review and meta-analysis.
    Vlieg-Boerstra B; de Jong N; Meyer R; Agostoni C; De Cosmi V; Grimshaw K; Milani GP; Muraro A; Oude Elberink H; Pali-Schöll I; Roduit C; Sasaki M; Skypala I; Sokolowska M; van Splunter M; Untersmayr E; Venter C; O'Mahony L; Nwaru BI · Allergy · 2022
    Meta-analysis199,055 participants115 studies pooledImmunity forZinc
  118. Zinc supplementation reduces the incidence of acute lower respiratory infections in infants and preschool children: a double-blind, controlled trial.
    Sazawal S; Black RE; Jalla S; Mazumdar S; Sinha A; Bhan MK · Pediatrics · 1998
    Randomized trial609 participantsImmunity forZinc
  119. A randomized controlled trial of zinc supplementation in the treatment of acute respiratory tract infection in Thai children.
    Rerksuppaphol S; Rerksuppaphol L · Pediatric reports · 2020
    Randomized trial64 participantsImmunity forZinc
  120. The effect of zinc and vitamin A supplementation on immune response in an older population.
    Fortes C; Forastiere F; Agabiti N; Fano V; Pacifici R; Virgili F; Piras G; Guidi L; Bartoloni C; Tricerri A; Zuccaro P; Ebrahim S; Perucci CA · Journal of the American Geriatrics Society · 1998
    Randomized trial136 participantsImmunity forZinc
  121. The role of specific nutrients in preventing immune system and blood cell disorders: an umbrella review.
    Vecchietti A; Strano P; Minutolo G; Grieco V; Cappuccio G; Granvillano G; Confalonieri L; Briganti GL; Raso E; Chimienti M; Pellegrini M; Mercogliano M; Spatari G; Lugli C; Urbano T; Lorenzon A · Journal of preventive medicine and hygiene · 2026
    Systematic review13 studies pooledImmunity forZinc
  122. Elevated intakes of supplemental chromium improve glucose and insulin variables in individuals with type 2 diabetes.
    Anderson RA; Cheng N; Bryden NA; Polansky MM; Cheng N; Chi J; Feng J · Diabetes · 1997
    Randomized trial180 participantsMetabolism Boost forChromium
  123. Chromium Supplementation and the Effects on Metabolic Status in Women with Polycystic Ovary Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Jamilian M; Asemi Z · Annals of nutrition & metabolism · 2016
    Randomized trial64 participantsMetabolism Boost forChromium
  124. A Comprehensive insight into the effect of chromium supplementation on oxidative stress indices in diabetes mellitus: A systematic review.
    Kooshki F; Tutunchi H; Vajdi M; Karimi A; Niazkar HR; Shoorei H; Pourghassem Gargari B · Clinical and experimental pharmacology & physiology · 2024
    Systematic review33 studies pooledMetabolism Boost forChromium
  125. Comparison of nutritional supplements in improving glycolipid metabolism and endocrine function in polycystic ovary syndrome: a systematic review and network meta-analysis.
    Hu X; Wang W; Su X; Peng H; Tan Z; Li Y; Huang Y · PeerJ · 2023
    Meta-analysis2,362 participants41 studies pooledMetabolism Boost forChromium Metabolism Boost forSelenium
  126. [Chromium supplementation in patients with type 2 diabetes and high risk of type 2 diabetes: a meta-analysis of randomized controlled trials].
    San Mauro-Martin I; Ruiz-León AM; Camina-Martín MA; Garicano-Vilar E; Collado-Yurrita L; Mateo-Silleras Bd; Redondo Del Río Mde P · Nutricion hospitalaria · 2017
    Meta-analysis13 studies pooledMetabolism Boost forChromium
  127. Iodine Supplementation Decreases Hypercholesterolemia in Iodine-Deficient, Overweight Women: A Randomized Controlled Trial.
    Herter-Aeberli I; Cherkaoui M; El Ansari N; Rohner R; Stinca S; Chabaa L; von Eckardstein A; Aboussad A; Zimmermann MB · The Journal of nutrition · 2015
    Randomized trial163 participantsMetabolism Boost forIodine
  128. Effect of oral iodized oil on thyroid size and thyroid hormone metabolism in children with concurrent selenium and iodine deficiency.
    Zimmermann MB; Adou P; Torresani T; Zeder C; Hurrell RF · European journal of clinical nutrition · 2000
    Single-arm trial51 participantsMetabolism Boost forIodine
  129. Serum Iodine Concentration as a Biomarker for Individual Iodine Nutrition and Thyroid Function in Pregnant Women: A Cross-Sectional Study in Hubei Province.
    Xu M; Dai X; Wang Z; Guo C; Zhang B; Guo H · Public health nutrition · 2026
    Cross-sectional study1,197 participantsMetabolism Boost forIodine
  130. Iron status influences the efficacy of iodine prophylaxis in goitrous children in Côte d'Ivoire.
    Zimmermann MB · International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition · 2002
    OtherMetabolism Boost forIodine
  131. Persistence of goiter despite oral iodine supplementation in goitrous children with iron deficiency anemia in Côte d'Ivoire.
    Zimmermann M; Adou P; Torresani T; Zeder C; Hurrell R · The American journal of clinical nutrition · 2000
    Non-randomized trial109 participantsMetabolism Boost forIodine
  132. Effects of selenium supplementation on glucose homeostasis, inflammation, and oxidative stress in gestational diabetes: Randomized, double-blind, placebo-controlled trial.
    Asemi Z; Jamilian M; Mesdaghinia E; Esmaillzadeh A · Nutrition (Burbank, Los Angeles County, Calif.) · 2016
    Randomized trial70 participantsMetabolism Boost forSelenium
  133. Metabolic response to selenium supplementation in women with polycystic ovary syndrome: a randomized, double-blind, placebo-controlled trial.
    Jamilian M; Razavi M; Fakhrie Kashan Z; Ghandi Y; Bagherian T; Asemi Z · Clinical endocrinology · 2016
    Randomized trial70 participantsMetabolism Boost forSelenium
  134. The Effects of Selenium Supplementation on Gene Expression Related to Insulin and Lipid Metabolism, and Pregnancy Outcomes in Patients with Gestational Diabetes Mellitus: a Randomized, Double-Blind, Placebo-Controlled Trial.
    Karamali M; Dastyar F; Badakhsh MH; Aghadavood E; Amirani E; Asemi Z · Biological trace element research · 2021
    Randomized trial36 participantsMetabolism Boost forSelenium
  135. Glycemic and lipid responses to selenium-enriched vs. zeaxanthin-enriched eggs in patients with type 2 diabetes: a 12-week randomized controlled trial.
    Niu X; Zhang Y; Liu Y; Zhu Y; Fang B; Hu C; Xu X; Wang R; Sang Y; Zhang Q; Guo J · Frontiers in nutrition · 2026
    Randomized trial58 participantsMetabolism Boost forSelenium
  136. The effect of curcumin and zinc co-supplementation on glycemic parameters in overweight or obese prediabetic subjects: A phase 2 randomized, placebo-controlled trial with a multi-arm, parallel-group design.
    Karandish M; Mozaffari-Khosravi H; Mohammadi SM; Cheraghian B; Azhdari M · Phytotherapy research : PTR · 2021
    Randomized trial84 participantsMetabolism Boost forZinc
  137. Relationship between zinc and glucose metabolism in Japanese adults.
    Suka M; Tsuruta H; Takao T; Yanagisawa H · Diabetology international · 2026
    Cross-sectional study533 participantsMetabolism Boost forZinc
  138. Zinc and the Innovative Zinc-α2-Glycoprotein Adipokine Play an Important Role in Lipid Metabolism: A Critical Review.
    Banaszak M; Górna I; Przysławski J · Nutrients · 2021
    Narrative reviewMetabolism Boost forZinc
  139. Capsaicin and Zinc Signalling Pathways as Promising Targets for Managing Insulin Resistance and Type 2 Diabetes.
    Ferdowsi PV; Ahuja KDK; Beckett JM; Myers S · Molecules (Basel, Switzerland) · 2023
    Narrative reviewMetabolism Boost forZinc
  140. Zinc and Diabetes: A Connection between Micronutrient and Metabolism.
    Ahmad R; Shaju R; Atfi A; Razzaque MS · Cells · 2024
    Narrative reviewMetabolism Boost forZinc
  141. Biotin for the treatment of nail disease: what is the evidence?
    Lipner SR; Scher RK · The Journal of dermatological treatment · 2018
    Narrative reviewNail Health forBiotin
  142. Treatment of brittle fingernails and onychoschizia with biotin: scanning electron microscopy.
    Colombo VE; Gerber F; Bronhofer M; Floersheim GL · Journal of the American Academy of Dermatology · 1991
    Other32 participantsNail Health forBiotin
  143. Treatment of brittle nail with a hydroxypropyl chitosan-based lacquer, alone or in combination with oral biotin: A randomized, assessor-blinded trial.
    Chiavetta A; Mazzurco S; Secolo MP; Tomarchio G; Milani M · Dermatologic therapy · 2020
    Randomized trial50 participantsNail Health forBiotin
  144. Vitamins and minerals: their role in nail health and disease.
    Scheinfeld N; Dahdah MJ; Scher R · Journal of drugs in dermatology : JDD · 2007
    Narrative reviewNail Health forBiotin Nail Health forZinc
  145. Acute selenium toxicity associated with a dietary supplement.
    MacFarquhar JK; Broussard DL; Melstrom P; Hutchinson R; Wolkin A; Martin C; Burk RF; Dunn JR; Green AL; Hammond R; Schaffner W; Jones TF · Archives of internal medicine · 2010
    Observational study201 participantsNail Health forSelenium
  146. Vitamin C Deficiency in Inflammatory Bowel Disease: The Forgotten Micronutrient.
    Dunleavy KA; Ungaro RC; Manning L; Gold S; Novak J; Colombel JF · Crohn's & colitis 360 · 2023
    Other20 participantsNail Health forVitamin C
  147. Recommendations for the definition, evaluation, and treatment of nail psoriasis in adult patients with no or mild skin psoriasis: A dermatologist and nail expert group consensus.
    Rigopoulos D; Baran R; Chiheb S; Daniel CR; Di Chiacchio N; Gregoriou S; Grover C; Haneke E; Iorizzo M; Pasch M; Piraccini BM; Rich P; Richert B; Rompoti N; Rubin AI; Singal A; Starace M; Tosti A; Triantafyllopoulou I; Zaiac M · Journal of the American Academy of Dermatology · 2019
    Guideline / consensusNail Health forVitamin D
  148. Vitamins for the Management of Nail Disease: A Literature Review.
    Curtis KL; Lipner SR · Skin appendage disorders · 2025
    Narrative reviewNail Health forVitamin D
  149. Nail involvement in psoriatic arthritis.
    Sobolewski P; Walecka I; Dopytalska K · Reumatologia · 2019
    Narrative reviewNail Health forVitamin D
  150. Psoriasis treatment in difficult locations: scalp, nails, and intertriginous areas.
    Wozel G · Clinics in dermatology · 2009
    Narrative reviewNail Health forVitamin D
  151. Nail psoriasis: clinical presentation and best practice recommendations.
    Edwards F; de Berker D · Drugs · 2010
    Narrative reviewNail Health forVitamin D
  152. Noninferiority of Copper Dressings Than Negative Pressure Wound Therapy in Healing Diabetic Wounds: A Randomized Clinical Trial.
    Melamed E; Dabbah J; Israel T; Kan I; Pinzur MS; Roth T; Borkow G · Advances in wound care · 2026
    Randomized trialSkin Health forCopper
  153. Improvement of facial skin characteristics using copper oxide containing pillowcases: a double-blind, placebo-controlled, parallel, randomized study.
    Borkow G; Gabbay J; Lyakhovitsky A; Huszar M · International journal of cosmetic science · 2010
    Randomized trial57 participantsSkin Health forCopper
  154. Radially Electrospun Fibrous Membrane Incorporated with Copper Peroxide Nanodots Capable of Self-Catalyzed Chemodynamic Therapy for Angiogenesis and Healing Acceleration of Diabetic Wounds.
    Huang Y; Qi L; Liu Z; Jiang Y; Wang J; Liu L; Li Y; Zhang L; Feng G · ACS applied materials & interfaces · 2023
    Animal experimentSkin Health forCopper
  155. Engineering copper nanoparticle/polysaccharide-immobilized cotton gauze for accelerated healing of Staphylococcus aureus-infected dermal wounds.
    Sahoo M; Banerjee T; Virkar S; Das S; Biswas S; Mitra D · Journal of materials chemistry. B · 2026
    Animal experimentSkin Health forCopper
  156. Stimulation of Healing of Non-Infected Stagnated Diabetic Wounds by Copper Oxide-Impregnated Wound Dressings.
    Melamed E; Rovitsky A; Roth T; Assa L; Borkow G · Medicina (Kaunas, Lithuania) · 2021
    Single-arm trialSkin Health forCopper
  157. Comparative clinical trial of bifonazole solution versus selenium sulphide shampoo in the treatment of pityriasis versicolor.
    Chu AC · Dermatologica · 1985
    Randomized trial38 participantsSkin Health forSelenium
  158. Selenium supplementation and secondary prevention of nonmelanoma skin cancer in a randomized trial.
    Duffield-Lillico AJ; Slate EH; Reid ME; Turnbull BW; Wilkins PA; Combs GF; Park HK; Gross EG; Graham GF; Stratton MS; Marshall JR; Clark LC; Nutritional Prevention of Cancer Study Group · Journal of the National Cancer Institute · 2003
    Randomized trial1,312 participantsSkin Health forSelenium
  159. Evidence-Based Nutritional Interventions in Wound Care.
    Saeg F; Orazi R; Bowers GM; Janis JE · Plastic and reconstructive surgery · 2021
    Systematic review2,339 participants36 studies pooledSkin Health forSelenium Skin Health forVitamin E Skin Health forZinc
  160. A randomized, double-blind placebo-controlled trial evaluating the effects of vitamin E and selenium on arsenic-induced skin lesions in Bangladesh.
    Verret WJ; Chen Y; Ahmed A; Islam T; Parvez F; Kibriya MG; Graziano JH; Ahsan H · Journal of occupational and environmental medicine · 2006
    Randomized trial121 participantsSkin Health forSelenium
  161. The Whitening, Moisturizing, Anti-aging Activities, and Skincare Evaluation of Selenium-Enriched Mung Bean Fermentation Broth.
    Wei K; Guo C; Zhu J; Wei Y; Wu M; Huang X; Zhang M; Li J; Wang X; Wang Y; Wei X · Frontiers in nutrition · 2022
    Clinical trial31 participantsSkin Health forSelenium
  162. Evaluation of the anti-wrinkle effect of an ascorbic acid-loaded dissolving microneedle patch via a double-blind, placebo-controlled clinical study.
    Lee C; Yang H; Kim S; Kim M; Kang H; Kim N; An S; Koh J; Jung H · International journal of cosmetic science · 2017
    Randomized trial23 participantsSkin Health forVitamin C
  163. Comparative Study on the Outcome of Periorbital Wrinkles Treated with Laser-Assisted Delivery of Vitamin C or Vitamin C Plus Growth Factors: A Randomized, Double-blind, Clinical Trial.
    Machado BHB; Frame J; Zhang J; Najlah M · Aesthetic plastic surgery · 2021
    Randomized trial149 participantsSkin Health forVitamin C
  164. Randomized trial of topical ascorbic acid in DMSO versus imiquimod for the treatment of basal cell carcinoma.
    Burke B; Bailie JE · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2022
    Randomized trial25 participantsSkin Health forVitamin C
  165. Vitamin C improves healing of foot ulcers: a randomised, double-blind, placebo-controlled trial.
    Gunton JE; Girgis CM; Lau T; Vicaretti M; Begg L; Flood V · The British journal of nutrition · 2022
    Randomized trial16 participantsSkin Health forVitamin C
  166. Dietary nutrient intakes and skin-aging appearance among middle-aged American women.
    Cosgrove MC; Franco OH; Granger SP; Murray PG; Mayes AE · The American journal of clinical nutrition · 2007
    Cross-sectional study4,025 participantsSkin Health forVitamin C
  167. Randomized controlled trial using vitamins E and D supplementation in atopic dermatitis.
    Javanbakht MH; Keshavarz SA; Djalali M; Siassi F; Eshraghian MR; Firooz A; Seirafi H; Ehsani AH; Chamari M; Mirshafiey A · The Journal of dermatological treatment · 2011
    Randomized trial45 participantsSkin Health forVitamin E
  168. Serum vitamin E levels and chronic inflammatory skin diseases: A systematic review and meta-analysis.
    Liu X; Yang G; Luo M; Lan Q; Shi X; Deng H; Wang N; Xu X; Zhang C · PloS one · 2022
    Meta-analysis20 studies pooledSkin Health forVitamin E
  169. Effects of tocotrienol on aging skin: A systematic review.
    Ghazali NI; Mohd Rais RZ; Makpol S; Chin KY; Yap WN; Goon JA · Frontiers in pharmacology · 2022
    Systematic reviewSkin Health forVitamin E
  170. Carotenoids and carotenoids plus vitamin E protect against ultraviolet light-induced erythema in humans.
    Stahl W; Heinrich U; Jungmann H; Sies H; Tronnier H · The American journal of clinical nutrition · 2000
    Randomized trialSkin Health forVitamin E
  171. Sex-related differences in response to zinc pyrithione shampoo vs. non-anti-dandruff shampoo.
    Collins LZ; Baines FL; Matheson JR; Turner GA; Diao Y; Li Y; Pi Y · International journal of cosmetic science · 2019
    Meta-analysis2,088 participants20 studies pooledSkin Health forZinc
  172. Maintenance of an Acidic Skin Surface with a Novel Zinc Lactobionate Emollient Preparation Improves Skin Barrier Function in Patients with Atopic Dermatitis.
    Andrew PV; Pinnock A; Poyner A; Brown K; Chittock J; Kay LJ; Cork MJ; Danby SG · Dermatology and therapy · 2024
    Cohort study23 participantsSkin Health forZinc
  173. Spatial expression of metallothionein, matrix metalloproteinase-1 and Ki-67 in human epidermal wounds treated with zinc and determined by quantitative immunohistochemistry: A randomised double-blind trial.
    Ågren MS; Chafranska L; Eriksen JO; Forman JL; Bjerrum MJ; Schjerling P; Larsen HF; Cottarelli E; Jorgensen LN; Gjerdrum LMR · European journal of cell biology · 2021
    Randomized trial30 participantsSkin Health forZinc
  174. A pilot trial using topical regular crystalline insulin vs. aqueous zinc solution for uncomplicated cutaneous wound healing: Impact on quality of life.
    Attia EA; Belal DM; El Samahy MH; El Hamamsy MH · Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society · 2014
    Randomized trial90 participantsSkin Health forZinc
  175. Magnesium and anabolic hormones in older men.
    Maggio M; Ceda GP; Lauretani F; Cattabiani C; Avantaggiato E; Morganti S; Ablondi F; Bandinelli S; Dominguez LJ; Barbagallo M; Paolisso G; Semba RD; Ferrucci L · International journal of andrology · 2012
    Cohort study399 participantsTestosterone Support forMagnesium
  176. Analysis of the relationship between the blood concentration of several metals, macro- and micronutrients and endocrine disorders associated with male aging.
    Rotter I; Kosik-Bogacka DI; Dołęgowska B; Safranow K; Kuczyńska M; Laszczyńska M · Environmental geochemistry and health · 2017
    Cross-sectional study313 participantsTestosterone Support forMagnesium
  177. Effect of magnesium supplementation in improving hyperandrogenism, hirsutism, and sleep quality in women with polycystic ovary syndrome: A randomized, placebo-controlled clinical trial.
    Gholizadeh-Moghaddam M; Ghasemi-Tehrani H; Askari G; Jaripur M; Clark CCT; Rouhani MH · Health science reports · 2024
    Randomized trial64 participantsTestosterone Support forMagnesium
  178. The effects of trace element supplementation on glycolipid metabolism in PCOS: a systematic review and meta-analysis.
    Yang L; Gao Y; Zhao W; Qi Y; Duo X; Wang H · Frontiers in nutrition · 2025
    Meta-analysis1,600 participants25 studies pooledTestosterone Support forMagnesium
  179. Effects of magnesium supplementation on testosterone levels of athletes and sedentary subjects at rest and after exhaustion.
    Cinar V; Polat Y; Baltaci AK; Mogulkoc R · Biological trace element research · 2011
    Non-randomized trial20 participantsTestosterone Support forMagnesium
  180. Effect of Two Different Doses of Vitamin D Supplementation on Metabolic Profiles of Insulin-Resistant Patients with Polycystic Ovary Syndrome.
    Jamilian M; Foroozanfard F; Rahmani E; Talebi M; Bahmani F; Asemi Z · Nutrients · 2018
    Randomized trial90 participantsTestosterone Support forVitamin D
  181. Androgens and hirsutism score of overweight women with polycystic ovary syndrome improved after vitamin D treatment: A randomized placebo controlled clinical trial.
    Al-Bayyari N; Al-Domi H; Zayed F; Hailat R; Eaton A · Clinical nutrition (Edinburgh, Scotland) · 2021
    Randomized trial60 participantsTestosterone Support forVitamin D
  182. Association between plasma 25-OH vitamin D and testosterone levels in men.
    Nimptsch K; Platz EA; Willett WC; Giovannucci E · Clinical endocrinology · 2012
    Case-control study1,362 participantsTestosterone Support forVitamin D
  183. Causal Link Between Vitamin D and Total Testosterone in Men: A Mendelian Randomization Analysis.
    Chen C; Zhai H; Cheng J; Weng P; Chen Y; Li Q; Wang C; Xia F; Wang N; Lu Y · The Journal of clinical endocrinology and metabolism · 2020
    Other4,254 participantsTestosterone Support forVitamin D
  184. Associations of vitamin D status and vitamin D-related polymorphisms with sex hormones in older men.
    Rafiq R; van Schoor NM; Sohl E; Zillikens MC; Oosterwerff MM; Schaap L; Lips P; de Jongh RT · The Journal of steroid biochemistry and molecular biology · 2017
    Cohort study643 participantsTestosterone Support forVitamin D
  185. Environmental exposure to metals and male reproductive hormones: circulating testosterone is inversely associated with blood molybdenum.
    Meeker JD; Rossano MG; Protas B; Padmanahban V; Diamond MP; Puscheck E; Daly D; Paneth N; Wirth JJ · Fertility and sterility · 2010
    Cross-sectional study219 participantsTestosterone Support forZinc
  186. Nonpharmacological Interventions for the Management of Testosterone and Sperm Parameters: A Scoping Review.
    Santos HO; Cadegiani FA; Forbes SC · Clinical therapeutics · 2022
    Scoping reviewTestosterone Support forZinc
  187. Zinc is an Essential Element for Male Fertility: A Review of Zn Roles in Men's Health, Germination, Sperm Quality, and Fertilization.
    Fallah A; Mohammad-Hasani A; Colagar AH · Journal of reproduction & infertility · 2020
    Narrative reviewTestosterone Support forZinc
  188. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  189. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc