Woman's Prenatal 1 by Bayer One A Day — Ingredients, Evidence & Safety

🟢 99/100

This product looks safe

Folate: 1330mg is 1330.0× the Tolerable Upper Intake Level (1.0mg)
64% of ingredients have research evidence

C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Folate: 1330mg is 1330.0× the Tolerable Upper Intake Level (1.0mg)

Label Data

1 Softgel(s) Serving Size

60 Servings

Other Combinations Product Type

64% Evidence Coverage

Supplement Facts — Evidence Check

Calories

5 Calorie(s)

Total Fat

0.5 Gram(s) (1% DV)

Cholesterol

5 mg (2% DV)

Vitamin A

650 mcg (50% DV)

Vitamin C

85 mg (71% DV)

Vitamin D

15 mcg (100% DV)

✅ Within RDA (1.0× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)

RDA 0.015mg This product: 0.015mg UL 0.1mg

Vitamin E

19 mg (100% DV)

✅ 1.3× RDA — within safe limits 📚 177 studies (Tier A: 3, B: 90)

RDA 15mg This product: 19mg UL 1000mg

Thiamine

1.4 mg (100% DV)

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

RDA 1.2mg This product: 1.4mg

Riboflavin

1.6 mg (100% DV)

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

RDA 1.3mg This product: 1.6mg

Niacin

18 mg (100% DV)

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

RDA 14mg This product: 18mg UL 35mg

Vitamin B6

2 mg (100% DV)

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

RDA 1.3mg This product: 2mg UL 100mg

Folate

1330 mcg DFE (222% DV)

⚠️ Exceeds Tolerable Upper Intake Level by 1330.0× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)

RDA 0.4mg This product: 1330mg UL 1.0mg

Vitamin B12

2.8 mcg (100% DV)

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

RDA 0.0024mg This product: 0.0028mg

Biotin

35 mcg (100% DV)

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

RDA 0.03mg This product: 0.035mg

Pantothenic Acid

7 mg (100% DV)

✅ 1.4× RDA — within safe limits 📚 1 studies — no high-quality reviews

RDA 5mg This product: 7mg

Calcium

150 mg (12% DV)

Iron

27 mg (100% DV)

Iodine

150 mcg (52% 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

40 mg (10% DV)

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

This product: 40mg

Zinc

13 mg (100% DV)

✅ 1.2× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)

RDA 11mg This product: 13mg UL 40mg

Copper

1.3 mg (100% DV)

✅ 1.4× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)

RDA 0.9mg This product: 1.3mg UL 10mg

Omega-3 Fatty Acids

235 mg

📊 Market median: 750.0mg (447 products) 📚 388 studies (Tier A: 18, B: 204)

This product: 235mg UL 3000mg

Other Ingredients

Omega-3 Fish Oil Calcium Carbonate Gelatin Glycerin Calcium Ascorbate yellow Beeswax Magnesium Oxide Beta-Carotene Biotin Carbonyl Iron Annatto seed extract Cupric Oxide Cyanocobalamin D-Alpha-Tocopherol D-Calcium Pantothenate Folic Acid Niacinamide Potassium Iodide Water, Purified Pyridoxine Hydrochloride Retinyl Palmitate Riboflavin Soy Lecithin Thiamine Mononitrate Vitamin D3 Zinc Oxide

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

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

Target Groups

Pregnant Women Adult Female (18 - 50 Years) Lactating Gluten Free

Product Information

📋 Directions for Use

Directions: Adults, take one softgel daily with food.

⚠️ Warnings & Precautions

Contains: Fish (anchovy, sardine, tuna) and soy.

Warning: Accidental overdose of iron-containing products is a leading case of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a doctor or poison control center immediately. Keep out of reach of children Child resistant cap Not for children

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

For adult use only Do not exceed recommended intake. Do not use if safety seal bearing "sealed for your protection" under cap is torn or missing.

🧪 Formulation Notes

A complete multivitamin with more of what matters to mom and baby

One A Day Women's Prenatal 1 supports your nutritional needs at three key stages: 1 while you're trying to conceive 2 during pregnancy 3 and while breastfeeding

One A Day Women's Prenatal 1 is a multivitamin with at least 100% of the daily value for key nutrients such as folic acid and iron. One A Day Women's Prenatal 1 also has DHA, an Omega-3 fatty acid, that helps support healthy fetal brain and eye development during pregnancy and is also recommended by experts for breastfeeding mothers.

No synthetic colors No high fructose corn syrup No gluten no wheat allergen no dairy (milk) allergen no egg allergen

Complete multivitamin for Before During After Pregnancy with folic acid, DHA & iron Colors from natural sources

No artificial flavors or sweeteners

Due to the use of colors derived from natural sources, some dark spots may appear on the softgel over time. This does not impact product quality or safety.

Product of Spain

Additional Information

Questions or comments? Please text or call 1-800-800-4793 (Mon-Fri 9AM - 5PM EST)

60 day value pack

OB/GYN recommended

Store at room temperature. Avoid temperatures above 25 degrees C (77 degrees F).

Product Details

UPC / SKU 0 16500 56010 4

DSLD Entry Date 2023-02-21

Product Type Other Combinations

Form Softgel Capsule

Brand Bayer One A Day

DSLD ID 269986

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 →