Men's Complete Multivitamin by Bayer One A Day — Ingredients, Evidence & Safety

🟢 99/100

This product looks safe

Folate: 400mg is 400.0× the Tolerable Upper Intake Level (1.0mg)
74% of ingredients have research evidence

C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Folate: 400mg is 400.0× the Tolerable Upper Intake Level (1.0mg)

Label Data

1 Tablet(s) Serving Size

200 Servings

Other Combinations Product Type

74% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin A

900 mcg (100% DV)

Vitamin C

99 mg (110% DV)

Vitamin D

25 mcg (125% DV)

✅ 1.7× RDA — within safe limits 📚 604 studies (Tier A: 16, B: 251)

RDA 0.015mg This product: 0.025mg UL 0.1mg

Vitamin E

15 mg (100% DV)

✅ Within RDA (1.0× RDA of 15 mg) 📚 177 studies (Tier A: 3, B: 90)

RDA 15mg This product: 15mg UL 1000mg

Vitamin K

30 mcg (25% DV)

✅ Within RDA (0.2× RDA of 0.12 mg) 📚 273 studies (Tier A: 9, B: 175)

RDA 0.12mg This product: 0.03mg

Thiamine

1.32 mg (110% DV)

✅ 1.1× RDA — within safe limits 📚 76 studies (Tier A: 0, B: 33)

RDA 1.2mg This product: 1.32mg

Riboflavin

1.43 mg (110% DV)

✅ 1.1× RDA — within safe limits 📚 12 studies (Tier A: 0, B: 1)

RDA 1.3mg This product: 1.43mg

Niacin

17.6 mg (110% DV)

✅ 1.3× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)

RDA 14mg This product: 17.6mg UL 35mg

Vitamin B6

2.17 mg (128% DV)

✅ 1.7× RDA — within safe limits 📚 113 studies (Tier A: 3, B: 35)

RDA 1.3mg This product: 2.17mg UL 100mg

Folate

400 mcg DFE (100% DV)

⚠️ Exceeds Tolerable Upper Intake Level by 400.0× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)

RDA 0.4mg This product: 400mg UL 1.0mg

Vitamin B12

6.24 mcg (260% DV)

✅ 2.6× RDA — within safe limits 📚 138 studies (Tier A: 1, B: 44)

RDA 0.0024mg This product: 0.00624mg

Biotin

43 mcg (143% DV)

✅ 1.4× RDA — within safe limits 📚 26 studies (Tier A: 0, B: 11)

RDA 0.03mg This product: 0.043mg

Pantothenic Acid

15.5 mg (310% DV)

📊 3.1× RDA — above typical dose 📚 1 studies — no high-quality reviews

RDA 5mg This product: 15.5mg

Calcium

210 mg (16% DV)

Iron

Iodine

150 mcg (29% DV)

✅ Within RDA (1.0× RDA of 0.15 mg) 📚 243 studies (Tier A: 4, B: 133)

RDA 0.15mg This product: 0.15mg UL 1.1mg

Magnesium

120 mg (29% DV)

📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)

This product: 120mg

Zinc

11 mg (100% DV)

✅ Within RDA (1.0× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)

RDA 11mg This product: 11mg UL 40mg

Selenium

55 mcg (100% DV)

✅ Within RDA (1.0× RDA of 0.055 mg) 📚 172 studies (Tier A: 0, B: 67)

RDA 0.055mg This product: 0.055mg UL 0.4mg

Copper

0.9 mg (100% DV)

✅ Within RDA (1.0× RDA of 0.9 mg) 📚 36 studies (Tier A: 0, B: 11)

RDA 0.9mg This product: 0.9mg UL 10mg

Manganese

2.3 mg (100% DV)

✅ Within RDA (1.0× RDA of 2.3 mg) 📚 8 studies — no high-quality reviews

RDA 2.3mg This product: 2.3mg UL 11mg

Chromium

35 mcg (100% DV)

✅ Within RDA (1.0× RDA of 0.035 mg) 📚 197 studies (Tier A: 1, B: 55)

RDA 0.035mg This product: 0.035mg

Lycopene

300 mcg

📊 Market median: 10.0mg (35 products) 📚 5 studies (Tier A: 0, B: 2)

This product: 0.3mg

Other Ingredients

Calcium Carbonate Magnesium Oxide Microcrystalline Cellulose Ascorbic Acid Maltodextrin DL-Alpha-Tocopheryl Acetate Less than 2% of

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (76% of products) Nutrient (58% of products)

Target Groups

Adult Male (18-50 Years)

Product Information

📋 Directions for Use

Directions: Adults: One tablet daily, with food.

⚠️ Warnings & Precautions

If pregnant, breast-feeding, taking medication, or have any medical condition ask a health professional before use.

For adult use only

Not for children

Do not exceed recommended intake

Keep out of reach of children Child resistant cap

Do not use if printed safety seal bearing "Bayer HealthCare" under cap is torn or missing.

🧪 Formulation Notes

Nutritional support for 6 key vital functions Healthy energy metabolism Heart health Immune health Healthy muscle function Cell health Healthy blood pressure

No artificial colors

Specialized formula with more of what matters to men

Formulated to support: Healthy energy metabolism with B vitamins With B vitamins to help convert food to fuel Heart health with folic acid, vitamins B6 & B12 Not a replacement for heart medications Immune health with vitamins A, C, D, E, Selenium & Zinc Healthy muscle function with vitamin D Cell health with vitamins A, C & E Healthy blood pressure with vitamin D & Magnesium To help support blood pressure levels already within the normal range.

Does not contain iron

Free of: Artificial colors, artificial flavors and artificial sweeteners and fish/shellfish, egg and dairy allergens

Additional Information

Improved formula

Store at room temperature. Avoid excessive heat above 40 degrees C (104 degrees F).

Product Details

UPC / SKU 0 16500 08014 5

DSLD Entry Date 2021-01-22

Product Type Other Combinations

Form Tablet or Pill

Brand Bayer One A Day

DSLD ID 240432

Data Updated 2026-04-11

Research Evidence

337 Research Sources

54 Avg Quality Score

161 Meta Analysis

68 Systematic Review

51 Rct

48 Clinical Trial

2 Other

2 Regulatory Source

1 Narrative Review

1 Cochrane Review

1 Guideline

1 Openfda Safety

A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age

Meta Analysis The Cochrane database of systematic reviews 2017

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis

Meta Analysis BMJ (Clinical research ed.) 2011

PubMed DOI

A Fortification of staple foods with vitamin A for vitamin A deficiency

Systematic Review The Cochrane database of systematic reviews 2019

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age

Narrative Review The Cochrane database of systematic reviews 2016

PubMed DOI Cochrane

A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa

Meta Analysis The Cochrane database of systematic reviews 2020

PubMed DOI

A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials

Meta Analysis Journal of sport and health science 2023

PubMed DOI

A Food fortification with multiple micronutrients: impact on health outcomes in general population

Meta Analysis The Cochrane database of systematic reviews 2019

PubMed DOI

A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age

Meta Analysis The Cochrane database of systematic reviews 2024

PubMed DOI

View all evidence for Vitamin A →