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D3 400 IU

product on market Tablet or Pill Nature Made Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Vitamin D3 is supported by strong evidence for maintaining calcium homeostasis and supporting bone health. Research indicates it plays a critical role in nutrient absorption and immune system function. This specific formulation provides a low dose suitable for general maintenance.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for D3 400 IU
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
100
Servings
Vitamin
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

10 mcg (100% DV)
Within RDA (0.7× RDA) 608 studies (A:16, B:251)

Other Ingredients

Calcium Carbonate Cellulose Gel Croscarmellose Sodium Maltodextrin Stearic Acid Magnesium Stearate Corn Starch Vitamin D3
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: Take one tablet daily with a meal.

Warnings & Precautions

Store in a cool, dry place, out of reach of children.

Do not use if imprinted seal under cap is broken or missing.

Formulation Notes

D3 is the Body's Preferred Form of Vitamin D

Vitamin D Helps Support Teeth, Bone and Immune Health

No Artificial Colors - No Artificial Flavors No Preservatives - No Yeast or Gluten

USP has tested and verified ingredients, potency and manufacturing process. USP sets official standards for dietary supplements. www.uspverified.org

Additional Information

#1 Pharmacist Recommended Based on 2011 Pharmacy Times Survey of pharmacists recommending Letter Vitamin Supplements.

Enter Code for Wellness Valid only for U.S. and Puerto Rican residents.

USP Verified Dietary Supplement

Keep bottle tightly closed. Store in a cool, dry place, out of reach of children.

Metadata

Product Details

UPC / SKU0 31604 02671 4
DSLD Entry Date2024-02-22
Product TypeVitamin
FormTablet or Pill
BrandNature Made
DSLD ID302774
Data Updated2026-04-11
Research

Research Evidence

872
Research Sources
53
Avg Quality
309
Meta Analysis
309
Clinical Trial
111
Rct
71
Systematic Review
55
Guideline
4
Cochrane Review
4
Regulatory Source
2
Other
2
Narrative Review
2
Observational
1
Openfda Safety
A Vitamin D and vitamin D analogues for preventing fractures associated with involutional and post-menopausal osteoporosis
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D and vitamin D analogues for preventing fractures in post-menopausal women and older men
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D supplementation for prevention of cancer in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Interventions for preventing falls in older people in care facilities and hospitals
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Drugs for preventing lung cancer in healthy people
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A High prevalence of vitamin D deficiency in Asia: A systematic review and meta-analysis
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A The effect of vitamin D supplementation on depressive symptoms in adults: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A Interventions for preventing falls in older people living in the community
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
View all evidence for Vitamin D →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.