Complete Multivitamin

Complete Multivitamin

Bayer One A Day Men's4.8 (12,697 ratings)
Format:Tablet Quantity: 200 Tablet(s) · 200 servings
Goals
$13.99 $0.06 per serving

Product analysis

44 out of 100

Complete Multivitamin offers broad vitamin and mineral coverage at a low serving cost. The iron amount and most nutrient forms are not stated, making the formula harder to compare with individual needs.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality23

A few vitamin forms are named, while most nutrient forms remain unclear. Mixed or unspecified mineral sources also leave their likely absorption less certain.

Ingredient Transparency65

Most ingredient amounts are listed, but the iron amount is omitted. Most nutrient forms are also unspecified, leaving less clarity about both coverage and sources.

Value For Money51

Several mineral contributions are economical at the low serving cost. Value for many other nutrients remains uncertain, so the low cost does not establish equal value across the whole formula.

Customer Satisfaction93

Customer feedback is favorable across 12,697 ratings. The large review base gives useful satisfaction context without proving that the formula meets every nutritional need.

Product Focus2

The formula provides broad nutrient coverage. Its long ingredient list does not establish that every nutrient is needed or that the combination produces a particular health outcome.

Format
Tablet
Container
200 Tablet(s)
Per serving
$0.06
Customer rating
4.8 · 12,697 ratings
Report analysis

Goals

Everyday Health
Impact
Situational effect
D+ Ingredient FitF PathwaysF EvidenceB Formulation Logic
Folate · 400 mcg DFEVitamin B12 · 6.24 mcgVitamin D · 25 mcgMagnesium · 120 mgVitamin K · 30 mcgSelenium · 55 mcgZinc · 11 mgVitamin C · 99 mg
Study evidence
Folate Supportive 80 studies
Magnesium Supportive 114 studies
Selenium Supportive 70 studies
Vitamin C Supportive 56 studies
Vitamin D Supportive 115 studies
Vitamin K Supportive 34 studies
Zinc Supportive 60 studies
Immunity
Impact
Situational effect
D- Ingredient FitF PathwaysF EvidenceB Formulation Logic
Magnesium · 120 mgVitamin C · 99 mgZinc · 11 mgVitamin A · 900 mcgVitamin D · 25 mcgSelenium · 55 mcg
Study evidence
Iron Supportive 23 studies
Magnesium Supportive 8 studies
Selenium Mixed 37 studies
Vitamin A Supportive 107 studies
Vitamin C Supportive 53 studies
Vitamin D Supportive 85 studies
Vitamin E Supportive 21 studies
Zinc Supportive 73 studies
Impact
Situational effect
D- Ingredient FitF PathwaysF EvidenceB Formulation Logic
Iodine · 150 mcgVitamin D · 25 mcgVitamin B5 · 15.5 mgMagnesium · 120 mgRiboflavin · 1.43 mgThiamin · 1.32 mgVitamin B12 · 6.24 mcgIron · mg
Study evidence
Iodine Adverse 3 studies
Iron Supportive 74 studies
Magnesium Supportive 4 studies
Thiamin Disputed 12 studies
Vitamin D Supportive 32 studies
Hair Health
Impact
Situational effect
D- Ingredient FitF PathwaysF EvidenceB Formulation Logic
Biotin · 43 mcgVitamin D · 25 mcgZinc · 11 mgIron · mgVitamin C · 99 mg
Study evidence
Biotin Supportive 4 studies
Copper Adverse 4 studies
Folate Mixed 15 studies
Iodine No effect 1 study
Iron Disputed 25 studies
Niacin Disputed 2 studies
Selenium Disputed 7 studies
Vitamin A Disputed 13 studies
Vitamin D Disputed 34 studies
Vitamin E No effect 3 studies
Zinc Supportive 22 studies
Impact
Situational effect
D- Ingredient FitF PathwaysF EvidenceB Formulation Logic
Biotin · 43 mcgNiacin · 17.6 mgVitamin B12 · 6.24 mcgRiboflavin · 1.43 mgThiamin · 1.32 mgVitamin B5 · 15.5 mgVitamin B6 · 2.17 mgVitamin D · 25 mcgZinc · 11 mgMagnesium · 120 mg
Study evidence
Biotin Supportive 5 studies
Chromium Supportive 47 studies
Iodine Mixed 17 studies
Magnesium Supportive 61 studies
Niacin Supportive 17 studies
Selenium Mixed 28 studies
Thiamin Supportive 11 studies
Vitamin B6 Supportive 16 studies
Vitamin D Supportive 65 studies
Zinc Supportive 12 studies

Ingredients

IngredientAmount per servingScore
Vitamin A (Beta-Carotene)
900 mcg
Vitamin C
99 mg
Vitamin D
25 mcg
Vitamin E
15 mg
Vitamin K
30 mcg
Thiamine
1.32 mg
Riboflavin
1.43 mg
Niacin
17.6 mg
Vitamin B6
2.17 mg
Folate
400 mcg DFE
Vitamin B12
6.24 mcg
Biotin
43 mcg
Pantothenic Acid
15.5 mg
Calcium
210 mg 68
Iron
0 mg
Iodine
150 mcg 88
Magnesium
120 mg
Zinc
11 mg
Selenium
55 mcg 43
Copper
0.9 mg 61
Manganese
2.3 mg 58
Chromium
35 mcg
Lycopene
300 mcg
Men 18–50
Report overview
Iodine · 150 mcg OverallScore88
C+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
A serving provides 150 mcg iodine, an amount the evaluation considers suitable for daily support. Potassium iodide appears separately among other ingredients, while the form associated with the iodine amount remains unresolved.
How this ingredient is rated

Active Ingredient Quality & Bioavailability69

The iodine row leaves the chemical form unresolved; potassium iodide appears separately among other ingredients, with no source-specific amount established. No marine source is recorded.
Iodine Form & Bioavailability
The iodine row leaves the chemical form unresolved; potassium iodide appears separately among other ingredients, with no source-specific amount established.
Marine Source Purity & Sourcing
No marine source is recorded, so the marine-specific sourcing criterion does not apply; this does not establish contaminant absence.

Dose, Safety & Label Transparency100

The serving supplies 150 mcg iodine, an amount the evaluation considers suitable for daily support. The listed amount did not trigger the evaluation’s upper-limit caution.
Dosage Efficacy for Daily Support
The serving supplies 150 mcg iodine, an amount the evaluation considers suitable for daily support.
Dosage Safety & Upper Limits
The listed amount did not trigger the evaluation’s upper-limit caution.
Elemental Iodine Transparency
The iodine amount is listed as 150 mcg per serving.

Value100

A whole-product serving costs about $0.07.
Price Per Effective Serving
A whole-product serving costs about $0.07.
Calcium · 210 mg OverallScore68
F Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value
Each serving provides 210 mg of calcium, but its source is not fully clear. Calcium carbonate and calcium D-pantothenate appear in the other ingredients, and the whole-product serving costs about $0.07.
How this ingredient is rated

Active Ingredient Quality & Bioavailability37

Calcium carbonate and calcium D-pantothenate appear in the other ingredients, but the source of the listed calcium remains uncertain.
Calcium Form & Absorption Potential
Calcium carbonate and calcium D-pantothenate appear in the other ingredients; the source of the stated calcium amount is not fully known.
Elemental Calcium Transparency
The label specifies 210 mg of elemental calcium per serving.

Dose, Safety & Label Transparency82

A serving supplies 210 mg of calcium. No flagged artificial additives or flow agents are recorded; the sugar amount is unavailable in the saved facts.
Absorption-Optimized Serving Dose
A serving supplies 210 mg of calcium.
Formulation Purity & Additives
No flagged artificial additives or flow agents are recorded; the sugar amount is unavailable in the saved facts.

Value100

At about $0.07 per whole-product serving, the price covers the entire product.
Price Per Serving Efficiency
A whole-product serving costs about $0.07.
Manganese · 2.3 mg OverallScore58
F Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyA+ Value
A serving lists 2.3 mg of manganese. Manganese sulfate appears separately among other ingredients, but its share of that amount is unknown.
How this ingredient is rated

Active Ingredient Quality & Bioavailability8

The manganese row has no resolved source; manganese sulfate is listed separately among other ingredients, and its share of the declared amount is unknown.
Manganese Chemical Form
The manganese row has no resolved source; manganese sulfate is listed separately among other ingredients, and its share of the declared amount is unknown.

Dose, Safety & Label Transparency86

The selected serving lists 2.3 mg of elemental manganese.
Manganese Dosage Efficacy & Safety
The selected serving lists 2.3 mg of elemental manganese.
Elemental Weight Disclosure
The 2.3 mg amount is declared for manganese itself.

Value100

The whole-product serving costs about $0.07.
Price per Serving vs. Median
The whole-product serving costs about $0.07.
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. 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
  10. 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
  11. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  12. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  13. 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 trialEnergy forRiboflavin
  14. 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 participantsEnergy forRiboflavin
  15. 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 studyEnergy forRiboflavin
  16. 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 participantsEnergy forRiboflavin
  17. 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 pooledEnergy Metabolism Support forRiboflavin
  18. 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 participantsEnergy forThiamin
  19. 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 participantsEnergy forThiamin
  20. 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 / consensusEnergy forThiamin