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Women's Petites

Bayer One A Day Women's
4.7
★ ★ ★ ★ ★
(3097 ratings)
Iodine 150 mcg
Calcium 400 mg
Iron 18 mg
Copper 0.9 mg
Product Image
Score75
Broad women's coverage in two smaller tablets, including calcium, iron, D, iodine, and zinc. Unspecified forms, no magnesium, and calcium-iron competition are the main drawbacks.
How scoring works
Quantity:160 Tablet(s) • (80 servings)
Goals:
Hair Health
Energy
Immunity
Productivity Boost

Score 75

Broad women's coverage in two smaller tablets, including calcium, iron, D, iodine, and zinc. Unspecified forms, no magnesium, and calcium-iron competition are the main drawbacks.
How scoring works
$12.94($0.16 per serving)
Walmart
$ 12.94
iHerb
$ 12.95
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Analysis

The two-petite-tablet serving supplies core vitamins, 400 mg calcium, 18 mg iron, vitamin D, iodine, zinc, selenium, copper, manganese, and chromium. Smaller tablets may be easier to swallow than a standard one-daily women's multi.

Most nutrient forms are not identified, so absorption quality cannot be judged. Magnesium is absent, and calcium taken alongside iron may reduce iron absorption.

The product fits women who need iron and value smaller tablets. It is not appropriate for users without an iron need or for people seeking meaningful magnesium coverage.

Who is it for
  • Women who need supplemental iron
  • Adults who prefer smaller tablets
  • Users seeking calcium and vitamins together
Best for
  • Broad women's daily nutrition
  • Combined iron and calcium coverage
  • Easier-to-swallow multivitamin use

Pros

  • Smaller tablets improve swallowability
  • Provides 400 mg calcium and 18 mg iron
  • Includes vitamin D, iodine, and zinc
  • Broad vitamin and trace-mineral coverage
  • Balanced zinc and copper amounts

Cons

  • Most chemical forms are undisclosed
  • Does not include magnesium
  • Calcium may reduce iron absorption
  • Requires two tablets

Warnings

  • The 18 mg iron serving is unsuitable for people with iron-overload disorders and may be unnecessary for men or postmenopausal women.
  • Vitamin K can interfere with warfarin-type anticoagulants and requires stable clinician-guided intake.
  • Calcium can reduce absorption of iron, levothyroxine, and tetracycline-class antibiotics, so timing may need separation.

Nutrient quality

75 High impact

Beta-carotene is identified, but most vitamin and mineral forms are missing. Iron, calcium, vitamin D, iodine, and core vitamins provide useful daily amounts.

.

Ingredient transparency

69 High impact

Every listed nutrient has a specific amount. The supplied data does not include a complete inactive ingredient list.

.

Customer satisfaction

71 High impact

The aggregate satisfaction measure and review volume support a favorable first impression. Missing firsthand feedback leaves repeat complaints and real-world purpose fit uncertain.

.

Value for money

85 Highest impact

The moderate product cost supports broad coverage and a petite-tablet format. Each serving provides good value despite absent form details.

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Report analysis

Goals

Hair Health
Hair Health
Impact
Highest effect
A- Goal FitB Strength of SupportB+ CoverageA- Formula Quality
Biotin · 30 mcgVitamin D · 25 mcgZinc · 8 mgIron · 18 mgVitamin C · 84 mg

Iron, vitamin D, zinc, folate, B12, biotin, and selenium cover several nutritional causes of shedding. The iron and vitamin D amounts are meaningful, and copper is included alongside zinc.

Most mineral and vitamin forms are not specified, which makes absorption quality harder to judge. The broad multivitamin can help close dietary gaps but provides no structural protein or targeted hair active.

Study evidence
Biotin Supportive 4 studies
Copper Adverse 4 studies
Folate Mixed 15 studies
Iron Disputed 25 studies
Selenium Disputed 7 studies
Vitamin D Disputed 34 studies
Zinc Supportive 22 studies
Energy
Energy
Impact
High effect
A Goal FitB- Strength of SupportB- CoverageA- Formula Quality
Iodine · 150 mcgVitamin D · 25 mcgVitamin B5 · 5 mgRiboflavin · 1.3 mgThiamin · 0.97 mgVitamin B12 · 6 mcgIron · 18 mg

Iron, B vitamins, iodine, and other micronutrients support oxygen transport and metabolic energy production rather than providing a stimulant effect. The 18 mg iron amount is meaningful for women with higher iron needs.

The iron form is not identified, and calcium plus zinc in the same serving may compete with its absorption. Iron can be harmful when it is not needed, so persistent fatigue should be evaluated rather than treated with this iron-containing formula by default.

Study evidence
Iodine Adverse 3 studies
Iron Supportive 74 studies
Immunity
Immunity
Impact
High effect
A- Goal FitC- Strength of SupportB CoverageB- Formula Quality
Vitamin C · 84 mgZinc · 8 mgVitamin A · 700 mcgVitamin D · 25 mcgSelenium · 27.5 mcg

A broad multivitamin covers mucosal barriers, immune signaling, antioxidant needs, and trace-mineral nutrition. Most immune-specific amounts are suitable for maintenance but fall below focused vitamin C and zinc targets.

The unspecified mineral forms limit assessment of absorption, while calcium may compete with iron in the same serving. Vitamin K can interfere with warfarin-type anticoagulants, so users of those medicines need consistent intake and prescriber guidance.

Study evidence
Iron Supportive 23 studies
Selenium Mixed 37 studies
Vitamin C Supportive 53 studies
Vitamin D Supportive 85 studies
Zinc Supportive 73 studies
Productivity Boost
Productivity Boost
Impact
Moderate effect
D+ Goal FitC- Strength of SupportD CoverageD Formula Quality
Iron · 18 mgVitamin B12 · 6 mcgVitamin B12 · 6 mcgVitamin B6 · 1.7 mgZinc · 8 mg

Iron, B vitamins, and other nutrients may support energy when a dietary gap is present, but the multivitamin lacks a direct nootropic or adaptogen. It is a nutritional foundation rather than an acute productivity product.

The iron amount is useful and vitamin C, folate, and B12 provide relevant support. Unspecified forms and competing calcium and zinc make the iron contribution less predictable.

Study evidence
Iron Supportive 69 studies
Zinc Supportive 11 studies

Ingredients

IngredientAmount per serving
Vitamin A (Beta-Carotene)
 700 mcg
Vitamin C
84 mg
Vitamin D
25 mcg
Vitamin E
7.5 mg
Vitamin K
25 mcg
Thiamine (Vitamin B1)
 0.97 mg
Riboflavin (Vitamin B2)
 1.3 mg
Niacin
16 mg
Vitamin B6
1.7 mg
Folate
665 mcg DFE
Vitamin B12
6 mcg
Biotin
30 mcg
Pantothenic Acid
5 mg
Calcium
400 mg
Iron
18 mg
Iodine
150 mcg
Zinc
8 mg
Selenium
27.5 mcg
Copper
0.9 mg
Manganese
1.8 mg
Chromium
25 mcg
Dairy Free Women 18–50
Report overview
Iodine · 150 mcg OverallScore75
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The 150 mcg iodine serving aligns with daily thyroid maintenance needs. The iodine compound or source is not identified, limiting confidence in stability and absorption. Its serving cost is well below the collection median.

View ingredientView products
Calcium · 400 mg OverallScore64
F Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value

The serving provides calcium at the lower edge of the range designed for efficient absorption. The calcium form is not identified, which prevents a clear assessment of bioavailability. Inactive ingredients are not supplied, while the low serving cost supports favorable value.

View ingredientView products
Iron · 18 mg OverallScore58
F Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyB+ Value

The iron amount meets a useful daily target, and vitamin C plus folate and vitamin B12 add relevant blood-health support. The undisclosed iron compound leaves absorption and digestive tolerance uncertain, while calcium and zinc may compete with iron in the same serving. Two tablets are needed, but the cost remains favorable for an effective serving.

View ingredientView products
Loading alternative details
77 Performance

Complete Multivitamin

Bayer One A Day Men's
Compared with 700 mcg of Vitamin A as Beta-Carotene, 84 mg of Vitamin C and 25 mcg of Vitamin D, the alternative provides 900 mcg of Vitamin A as Beta-Carotene, 99 mg of Vitamin C and 25 mcg of Vitamin D, and the supplied analysis indicates stronger alignment with Calcium, Iodine, Copper. Most chemical forms are undisclosed and several minerals are modest, limiting confidence in absorption and targeted effectiveness.
77 Performance

One Daily Women's

Equate
Compared with 700 mcg of Vitamin A as Beta-Carotene, 84 mg of Vitamin C and 25 mcg of Vitamin D, the alternative provides 27.5 mcg of Selenium, 0.9 mg of Copper and 1.8 mg of Manganese, and the supplied analysis indicates stronger alignment with Calcium, Iron, Iodine. No listed amount is clearly excessive, although iron is unnecessary for users without increased iron needs.
79 Performance

Women's Complete Multivitamin

Bayer One A Day Women's
Compared with 700 mcg of Vitamin A as Beta-Carotene, 84 mg of Vitamin C and 25 mcg of Vitamin D, the alternative provides 700 mcg of Vitamin A, 90 mg of Vitamin C and 25 mcg of Vitamin D, and the supplied analysis indicates stronger alignment with Iron, Iodine, Copper. Nearly all nutrient forms are unspecified, calcium and magnesium are modest, and iron may be unsuitable for women who do not need supplemental iron.
80 Budget

One Daily Women's

21st Century
The supplied serving cost is lower, while the formula provides 700 mcg of Vitamin A as Beta-Carotene, 700 mcg of Vitamin A as Vitamin A Acetate and 75 mg of Vitamin C as Ascorbic Acid. No listed dose is clearly excessive, although iron is unnecessary for users without increased iron needs.
79 Budget

Prenatal Folic Acid

Nature Made
The supplied serving cost is lower, while the formula provides 25 mcg of Vitamin D3 as Cholecalciferol, 15 mg of Vitamin E as DL-Alpha-Tocopheryl Acetate and 90 mcg of Vitamin K as Phytonadione. Folate form is not specified, calcium and magnesium are modest, and the formula lacks meaningful choline or omega-three support.
79 Budget

Masonatal

Mason Natural
The supplied serving cost is lower, while the formula provides 600 mcg RAE of Vitamin A as Beta-Carotene, 120 mg of Vitamin C as Ascorbic Acid and 10 mcg of Vitamin D3 as Cholecalciferol. Substantial iron, folate, vitamin C, zinc, and core vitamins create a nutrient-dense formula suited to people with higher reproductive-age needs.
79 Value

Prenatal Multi

Nature Made
1.4 mg of Riboflavin, 770 mcg of Vitamin A as Beta-Carotene and 85 mg of Vitamin C as Ascorbic Acid offers a practical value trade-off because the supplied serving cost is lower and the value analysis is stronger. Folate form is not specified, calcium and magnesium are modest, and the formula lacks meaningful choline or omega-three support.
74 Value

Proactive 65+ for Men & Women

Bayer One A Day
24 mcg of Chromium, 670 mcg of Vitamin A as Beta-Carotene and 90 mg of Vitamin C offers a practical value trade-off because the supplied serving cost is lower. Most forms are undisclosed, magnesium is modest, and the absence of meaningful vitamin K leaves bone coverage incomplete.
88 Value

Prenatal

Fairhaven Health
650 mcg of Vitamin A as Beta-Carotene, 120 mg of Vitamin C as Ascorbic Acid and 15 mcg of Vitamin D as Cholecalciferol offers a practical value trade-off because the supplied value analysis is stronger. Its iron amount may cause nausea or constipation, while iodine and iron are best matched to prenatal needs.
Report alternatives

Sources

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

  1. 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
  2. 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
  3. 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
  4. Large-dose intravenous ferric carboxymaltose injection for iron deficiency anemia in heavy uterine bleeding: a randomized, controlled trial.
    Van Wyck DB; Mangione A; Morrison J; Hadley PE; Jehle JA; Goodnough LT · Transfusion · 2010
    Randomized trial477 participantsEnergy forIron
  5. The Effect of Parenteral or Oral Iron Supplementation on Fatigue, Sleep, Quality of Life and Restless Legs Syndrome in Iron-Deficient Blood Donors: A Secondary Analysis of the IronWoMan RCT.
    Macher S; Herster C; Holter M; Moritz M; Matzhold EM; Stojakovic T; Pieber TR; Schlenke P; Drexler C; Amrein K · Nutrients · 2021
    Randomized trial176 participantsEnergy forIron
  6. Ferric carboxymaltose vs. oral iron in the treatment of pregnant women with iron deficiency anemia: an international, open-label, randomized controlled trial (FER-ASAP).
    Breymann C; Milman N; Mezzacasa A; Bernard R; Dudenhausen J; FER-ASAP investigators · Journal of perinatal medicine · 2018
    Randomized trial252 participantsEnergy forIron
  7. Effect of iron therapy on fatigue symptoms in non-anaemic iron deficient women of reproductive age- A Randomized Controlled Trial.
    Sultana N; Bajwa FA; Sikandar MZ; Haider MM; Majeed T · JPMA. The Journal of the Pakistan Medical Association · 2026
    Randomized trial164 participantsEnergy forIron
  8. Intravenous iron isomaltoside treatment of women suffering from severe fatigue after postpartum hemorrhage.
    Holm C; Thomsen LL; Langhoff-Roos J · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2019
    Randomized trial85 participantsEnergy forIron
  9. 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 forBiotin
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. Hair Loss After Metabolic and Bariatric Surgery: a Systematic Review and Meta-analysis.
    Zhang W; Fan M; Wang C; Mahawar K; Parmar C; Chen W; Yang W; Global Bariatric Research Collaborative · Obesity surgery · 2021
    Meta-analysis2,538 participants18 studies pooledHair Health forFolate
  18. Quantitative Analysis of Selected Circulating Hematological Biomarkers, Essential Minerals, Vitamins, and Thyroid Hormones in Females Affected by Hair Loss.
    Al-Fawaeir S; Al-Odat I · Diseases (Basel, Switzerland) · 2025
    Case-control study200 participantsHair Health forFolate
  19. Twelve weeks of protracted venous infusion of fluorouracil (5-FU) is as effective as 6 months of bolus 5-FU and folinic acid as adjuvant treatment in colorectal cancer.
    Saini A; Norman AR; Cunningham D; Chau I; Hill M; Tait D; Hickish T; Iveson T; Lofts F; Jodrell D; Ross PJ; Oates J · British journal of cancer · 2003
    Randomized trialHair Health forFolate
  20. Role of oxaliplatin combined with 5-fluorouracil and folinic acid in the first- and second-line treatment of advanced colorectal cancer.
    Jonker D; Rumble RB; Maroun J; Gastrointestinal Cancer Disease Site Groupof Cancer Care Ontario’s Program in Evidence-Based Care · Current oncology (Toronto, Ont.) · 2012
    Randomized trialHair Health forFolate
  21. Phase I-II study of vinorelbine in combination with 5-fluorouracil and folinic acid as first-line chemotherapy in metastatic breast cancer: a regimen with a low subjective toxic burden.
    Nolè F; de Braud F; Aapro M; Minchella I; De Pas TM; Zampino MG; Monti S; Andreoni G; Goldhirsch A · Annals of oncology : official journal of the European Society for Medical Oncology · 1997
    Randomized trialHair Health forFolate
  22. The Association Between Alopecia Areata and Iron Deficiency Anemia: A Large-Scale Population-Based Case-Control Study.
    Davidovici B; Drutin Y; Ben-Tov A; Mimouni D; Wohl Y · Journal of personalized medicine · 2026
    Case-control study100,203 participantsHair Health forIron
  23. Iron Deficiency and Nonscarring Alopecia in Women: Systematic Review and Meta-Analysis.
    Treister-Goltzman Y; Yarza S; Peleg R · Skin appendage disorders · 2022
    Meta-analysis10,029 participants36 studies pooledHair Health forIron
  24. Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy.
    Chinisaz F; Maleki T; Najjari K; Miratashi Yazdi SA · Obesity surgery · 2026
    Cohort study261 participantsHair Health forIron
  25. Assessment of Serum Ferritin Levels in Female Patients With Telogen Effluvium.
    Thamotharan N; Harikumar MV; Sundaram M; Swaminathan A; Rangarajan S · Cureus · 2026
    Cross-sectional study100 participantsHair Health forIron
  26. Diagnosis and treatment of female alopecia: Focusing on the iron deficiency-related alopecia.
    Lin CS; Chan LY; Wang JH; Chang CH · Tzu chi medical journal · 2023
    Cohort study155 participantsHair Health forIron
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. The immune response in iron-deficient children: Impaired cellular defense mechanisms with altered humoral components.
    Macdougall LG; Anderson R; McNab GM; Katz J · The Journal of pediatrics · 1975
    Single-arm trial27 participantsImmunity forIron
  43. The role of iron homeostasis in remodeling immune function and regulating inflammatory disease.
    Mu Q; Chen L; Gao X; Shen S; Sheng W; Min J; Wang F · Science bulletin · 2023
    Narrative reviewImmunity forIron
  44. Hepcidin--a peptide hormone at the interface of innate immunity and iron metabolism.
    Ganz T · Current topics in microbiology and immunology · 2006
    Narrative reviewImmunity forIron
  45. Adaptive immunity and vaccination - iron in the spotlight.
    Preston AE; Drakesmith H; Frost JN · Immunotherapy advances · 2025
    Narrative reviewImmunity forIron
  46. Buried Treasure: Evolutionary Perspectives on Microbial Iron Piracy.
    Barber MF; Elde NC · Trends in genetics : TIG · 2016
    Narrative reviewImmunity forIron
  47. 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
  48. 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
  49. 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
  50. 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
  51. 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
  52. 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
  53. 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
  54. 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
  55. 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
  56. 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
  57. 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
  58. 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
  59. 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
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    Anitua E; Tierno R; Alkhraisat MH · Clinical nutrition (Edinburgh, Scotland) · 2022
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    Sazawal S; Black RE; Jalla S; Mazumdar S; Sinha A; Bhan MK · Pediatrics · 1998
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    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
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    Systematic review13 studies pooledImmunity forZinc
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    Li R; Chen X; Yan H; Deurenberg P; Garby L; Hautvast JG · The American journal of clinical nutrition · 1994
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    Low MS; Speedy J; Styles CE; De-Regil LM; Pasricha SR · The Cochrane database of systematic reviews · 2016
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    Tupe RP; Chiplonkar SA · Journal of the American College of Nutrition · 2010
    Randomized trial180 participantsProductivity Boost forZinc
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    Meli AM; Ali A; Mhd Jalil AM; Mohd Yusof H; Tan MMC · Medicina (Kaunas, Lithuania) · 2022
    Meta-analysisProductivity Boost forZinc
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    Chiplonkar SA; Kawade R · International journal of food sciences and nutrition · 2015
    Cross-sectional study403 participantsProductivity Boost forZinc
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