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Vitamin D3 25 mcg (1000 IU)

product on market Capsule Natural Factors Whole Earth & Sea 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 immune function and nutrient absorption. This formulation provides a standard dose to help prevent deficiency in individuals with limited sunlight exposure.

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

Label

Product Label

Label for Vitamin D3 25 mcg (1000 IU)
Open Full PDF View on NIH DSLD →
Details

Label Data

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

Supplement Facts — Evidence Check

25 mcg (125% DV)
1.7× RDA — within safe limits 608 studies (A:16, B:251)

Other Ingredients

Microcrystalline Cellulose Vegetarian Capsule Vegetable Lubricant
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: 1 capsule per day or as directed by a health professional.

Warnings & Precautions

Cautions: As with any supplement, consult your health professional before use if you are pregnant, breastfeeding, or trying to conceive, or if you are taking medication, have a medical condition, or anticipate a surgery.

Keep out of the reach of children.

Sealed for your protection. Do not use if seal is broken.

Formulation Notes

Pure food nutrient-rich capsules 100% made, packaged, and tested in USA and Canada

Our natural Vitamin D3 is the bioactive natural form of vitamin D and is necessary for the efficient utilization of calcium, in turn helping to form and maintain strong bones and a healthy immune system.

Manufactured by Natural Factors to ensure safety and potency in accordance with Good Manufacturing Practices (GMP) of the FDA and Health Canada.

Contains no artificial colors, preservatives, or sweeteners; no dairy, sugar, wheat, gluten, yeast, soy, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs.

Suitable for vegetarians/vegans.

Pure food

Vegan Bioenhanced

Non-GMO

Suitable for vegans

Product of Canada

At Natural Factors state of the art laboratories, we use “mass spectrometry” to test for over 600 substances. Mass spectrometry can test at the molecular – even atomic – level, detecting environmental pollutants such as pesticides, herbicides, and fungicides, as well as heavy metals and other undesirable substances.

The wonderful world of Lichens Sourced from wild harvested Lichen, the plant-based vitamin D in this formula is in the natural form (Cholecalciferol) and is better absorbed and utilized by the body. The Lichen Vitamin D3 is harvested and extracted in a sustainable manner and carefully processed to ensure optimum purity and stability. Lichens are small, unique composite organisms formed by a symbiotic and closely interacting relationship between fungi and algae. This gives them unique attributes such as surviving in extreme climates and having the ability to grow and accumulate meaningful levels of useful nutrients, including Vitamin D3. To look at, Lichens are like moss or small plants and can be found all over the world including extreme environments such as the Arctic and deserts.

Additional Information

For freshness, store in a cool, dry place.

This bioenergetic formula is the "seed of nutrition"

Feel the difference

Isura Non-GMO Mass spec Documentation Lab tested

$2 from the purchase of each bottle goes to... plant a seed & see what grows foundation www.seewhatgrows.org Made with 100% recycled material

Recyclable container and label.

Metadata

Product Details

UPC / SKU0 68958 35512 2
DSLD Entry Date2021-04-22
Product TypeVitamin
FormCapsule
DSLD ID247491
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
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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.