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Vitamin D

product on market Tablet or Pill USANA 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 bone health and supporting immune function. Vitamin K works synergistically with D3 to regulate calcium deposition in bones and blood vessels. Research indicates these ingredients are generally safe and effective for their intended nutritional purposes.

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

Label

Product Label

Label for Vitamin D
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
84
Servings
Vitamin
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

50 mcg (250% DV)
3.3× RDA — above typical dose (UL: 0.1 mg) 608 studies (A:16, B:251)
30 mcg (25% DV)
Within RDA (0.2× RDA) 275 studies (A:9, B:175)

Other Ingredients

Microcrystalline Cellulose Starch, Pregelatinized Croscarmellose Sodium Ascorbyl Palmitate Silicon Dioxide Maltodextrin Sunflower Lecithin Palm Olein Guar Gum
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take one (1) tablet daily, preferably with food.

Warnings & Precautions

Keep out of reach of children.

Consult your physician if you are pregnant, nursing, taking a prescription drug, or have a medical condition.

If you exceed the established Upper Limit (UL) of 100 g (4000 IU/d) for Vitamin D intake, regular blood tests for vitamin D and calcium status are recommended. There is a safety seal under the cap. Do not use if the seal is broken or missing.

Formulation Notes

Laboratory tested. Quality guaranteed. Meets USP specification for uniformity, potency, and disintegration, where applicable.

Additional Information

Keep tablets in original container with the lid tightly closed between use. Store in a cool, dry place. Store below 25 degrees C.

Discard seal, empty & replace cap Plastic bottle how2recycle.info

MWT Potency Guaranteed

Metadata

Product Details

DSLD Entry Date2024-12-21
Product TypeVitamin
FormTablet or Pill
BrandUSANA
DSLD ID322336
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.