Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- 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 participantsflagEnergy forscienceIodine
- 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 participantsflagEnergy forscienceIodine
- 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 participantsflagEnergy forscienceIodine
- Physicochemical properties of and volatile compounds in riboflavin fortified cloudy apple juice; study of its effect on job fatigue among Egyptian construction workers.
Fouad S; Ibrahim GE; Hussein AMS; Ibrahim FA; El Gendy A · Heliyon · 2021
Non-randomized trialflagEnergy forscienceRiboflavin
- Vitamin B status in patients with chronic fatigue syndrome.
Heap LC; Peters TJ; Wessely S · Journal of the Royal Society of Medicine · 1999
Case-control study30 participantsflagEnergy forscienceRiboflavin
- B-vitamins, related vitamers, and metabolites in patients with quiescent inflammatory bowel disease and chronic fatigue treated with high dose oral thiamine.
Bager P; Hvas CL; Hansen MM; Ueland P; Dahlerup JF · Molecular medicine (Cambridge, Mass.) · 2023
Observational studyflagEnergy forscienceRiboflavin
- Metabolic features of chronic fatigue syndrome.
Naviaux RK; Naviaux JC; Li K; Bright AT; Alaynick WA; Wang L; Baxter A; Nathan N; Anderson W; Gordon E · Proceedings of the National Academy of Sciences of the United States of America · 2024
Case-control study84 participantsflagEnergy forscienceRiboflavin
- Effectiveness of Riboflavin in Inherited Metabolic Diseases: A Systematic Review
Bregje Jaeger, Nina N Stolwijk, Femke Aaldering, Charlotte A Ruys, Marije Smits, Nicole I Wolf, Carla E M Hollak, Annet M Bosch · Journal of Inherited Metabolic Disease · 2026
Systematic review381 studies pooledflagEnergy forscienceRiboflavin
- Influence of thiamin supplementation on the health and general well-being of an elderly Irish population with marginal thiamin deficiency.
Smidt LJ; Cremin FM; Grivetti LE; Clifford AJ · Journal of gerontology · 1991
Randomized trial80 participantsflagEnergy forscienceThiamin
- Randomised clinical trial: high-dose oral thiamine versus placebo for chronic fatigue in patients with quiescent inflammatory bowel disease.
Bager P; Hvas CL; Rud CL; Dahlerup JF · Alimentary pharmacology & therapeutics · 2021
Randomized trial40 participantsflagEnergy forscienceThiamin
- Dietary reference values for thiamin.
EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA); Turck D; Bresson JL; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Nowicka G; Pentieva K; Sanz Y; Siani A; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Lamberg-Allardt C; Przyrembel H; Tetens I; Gudelj Rakic J; Ioannidou S; de Sesmaisons-Lecarré A; Forss AC; Neuhäuser-Berthold M · EFSA journal. European Food Safety Authority · 2026
Guideline / consensusflagEnergy forscienceThiamin
- Effects of thiamine supplementation on exercise-induced fatigue.
Suzuki M; Itokawa Y · Metabolic brain disease · 1996
Randomized trial16 participantsflagEnergy forscienceThiamin
- Long-term maintenance treatment with 300 mg thiamine for fatigue in patients with inflammatory bowel disease: results from an open-label extension of the TARIF study.
Bager P; Hvas CL; Rud CL; Dahlerup JF · Scandinavian journal of gastroenterology · 2022
Randomized trialflagEnergy forscienceThiamin
- 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 pooledflagGeneral Health forscienceSelenium
- 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 pooledflagGeneral Health forscienceSelenium
- 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 pooledflagGeneral Health forscienceSelenium
- 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 participantsflagGeneral Health forscienceSelenium
- 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 pooledflagGeneral Health forscienceSelenium
- Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.
Aune D; Keum N; Giovannucci E; Fadnes LT; Boffetta P; Greenwood DC; Tonstad S; Vatten LJ; Riboli E; Norat T · The American journal of clinical nutrition · 2019
Meta-analysis69 studies pooledflagGeneral Health forscienceVitamin C
- Scientific Opinion on the substantiation of a health claim related to vitamin C and increasing non haem iron absorption 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 / consensusflagGeneral Health forscienceVitamin C
- Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
Sotomayor CG; Eisenga MF; Gomes Neto AW; Ozyilmaz A; Gans ROB; Jong WHA; Zelle DM; Berger SP; Gaillard CAJM; Navis GJ; Bakker SJ · Nutrients · 2018
Cohort study598 participantsflagGeneral Health forscienceVitamin C
- Associations of Serum Biomarkers of Fruit and Vegetable Intake With the Risk of Cause-Specific Mortality and All-Cause Mortality: A National Prospective Cohort Study.
Pu L; Zhang R; Wang X; Zhao T; Sun H; Han L · Frontiers in nutrition · 2022
Cohort study12,530 participantsflagGeneral Health forscienceVitamin C
- Relation between plasma ascorbic acid and mortality in men and women in EPIC-Norfolk prospective study: a prospective population study. European Prospective Investigation into Cancer and Nutrition.
Khaw KT; Bingham S; Welch A; Luben R; Wareham N; Oakes S; Day N · Lancet (London, England) · 2001
Cohort study19,496 participantsflagGeneral Health forscienceVitamin C
- 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 participantsflagGeneral Health forscienceZinc
- 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 participantsflagGeneral Health forscienceZinc
- 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 participantsflagGeneral Health forscienceZinc
- 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 participantsflagGeneral Health forscienceZinc
- 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 participantsflagGeneral Health forscienceZinc
- 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 participantsflagHair Health forscienceBiotin
- Low serum biotinidase activity in children with valproic acid monotherapy.
Schulpis KH; Karikas GA; Tjamouranis J; Regoutas S; Tsakiris S · Epilepsia · 2001
Clinical trial125 participantsflagHair Health forscienceBiotin
- 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 reviewflagHair Health forscienceBiotin
- 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 reviewflagHair Health forscienceBiotin
- 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 participantsflagHair Health forscienceSelenium
- 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 participantsflagHair Health forscienceSelenium
- 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 participantsflagHair Health forscienceSelenium
- 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 participantsflagHair Health forscienceSelenium
- 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 reviewflagHair Health forscienceSelenium
- 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 reviewflagHair Health forscienceVitamin C
- 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 participantsflagHair Health forscienceVitamin C
- 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 studyflagHair Health forscienceVitamin C
- 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 studyflagHair Health forscienceVitamin C
- 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 reportflagHair Health forscienceVitamin C
- 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 participantsflagHair Health forscienceZinc
- 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 trialflagHair Health forscienceZinc
- 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 participantsflagHair Health forscienceZinc
- 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 participantsflagHair Health forscienceZinc
- Analysis of serum zinc and copper concentrations in hair loss.
Kil MS; Kim CW; Kim SS · Annals of dermatology · 2013
Case-control study342 participantsflagHair Health forscienceZinc
- 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 participantsflagImmunity forscienceSelenium
- 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 participantsflagImmunity forscienceSelenium
- 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 participantsflagImmunity forscienceSelenium
- 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 participantsflagImmunity forscienceSelenium
- 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 participantsflagImmunity forscienceSelenium
- Depressed immune response to tetanus in children with vitamin A deficiency.
Semba RD; Muhilal; Scott AL; Natadisastra G; Wirasasmita S; Mele L; Ridwan E; West KP; Sommer A · The Journal of nutrition · 1992
Randomized trial236 participantsflagImmunity forscienceVitamin A
- Impact of a single megadose of vitamin A at delivery on breastmilk of mothers and morbidity of their infants.
Roy SK; Islam A; Molla A; Akramuzzaman SM; Jahan F; Fuchs G · European journal of clinical nutrition · 1997
Randomized trial50 participantsflagImmunity forscienceVitamin A
- Vitamin A supplementation reduces measles morbidity in young African children: a randomized, placebo-controlled, double-blind trial.
Coutsoudis A; Broughton M; Coovadia HM · The American journal of clinical nutrition · 1991
Randomized trial60 participantsflagImmunity forscienceVitamin A
- Vitamin A supplementation enhances specific IgG antibody levels and total lymphocyte numbers while improving morbidity in measles.
Coutsoudis A; Kiepiela P; Coovadia HM; Broughton M · The Pediatric infectious disease journal · 1992
Randomized trial60 participantsflagImmunity forscienceVitamin A
- Vitamin A supplementation reduces the monocyte chemoattractant protein-1 intestinal immune response of Mexican children.
Long KZ; Santos JI; Estrada Garcia T; Haas M; Firestone M; Bhagwat J; Dupont HL; Hertzmark E; Rosado JL; Nanthakumar NN · The Journal of nutrition · 2006
Randomized trial127 participantsflagImmunity forscienceVitamin A
- 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 / consensusflagImmunity forscienceVitamin C
- 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 pooledflagImmunity forscienceVitamin C
- 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-analysisflagImmunity forscienceVitamin C
- New evidence for antioxidant properties of vitamin C.
Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
Randomized trial20 participantsflagImmunity forscienceVitamin C
- 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 pooledflagImmunity forscienceVitamin C
- 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 pooledflagImmunity forscienceVitamin D
- 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 pooledflagImmunity forscienceVitamin D
- 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 participantsflagImmunity forscienceVitamin D
- 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 participantsflagImmunity forscienceVitamin D
- 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 pooledflagImmunity forscienceVitamin D
- 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 pooledflagImmunity forscienceZinc
- 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 participantsflagImmunity forscienceZinc
- 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 participantsflagImmunity forscienceZinc
- 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 participantsflagImmunity forscienceZinc
- 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 pooledflagImmunity forscienceZinc