Vitamin D3 1000 IU®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Serving Size: 1 Tablet(s) · 1 per day

Not Present

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  Natural Factors Sun Tablets

  Vitacost.com4.8(4100)

  $7.67Lowest
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  Natural Factors Vitamin D3

  Natural Factors4.8(759)

  $10.95
• 

  Natural Factors Sun Softgels

  Village Vitamin Store4.8(169)

  $9.89
• 

  Natural Factors Vitamin D3 1000 IU, 180 Softgels

  Willy Street Co-op4.8(759)

  $11.99
• 

  Natural Factors Whole Earth & Sea Vegan Bioenhanced 60 Capsules

  Walmart - Pattern4.8(167)

  $15.37
• 

  Natural Factors IU Vitamin D3

  Natural Factors4.8(1600)

  $10.95
• 

  Natural Factors SunVitamin D3 2500 IU

  The Vitamin Shop4.8(18)

  $8.85
• 

  Natural Factors Vegan SunVitamin D3

  Village Vitamin Store4.9(15)

  $16.30

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• Vitamin D: The “sunshine” vitamin

  R Nair, A Maseeh - Journal of pharmacology and …, 2012 - journals.sagepub.com

  … vitamin D supplementation to at least 1000 IU.[6] A meta-analysis published in 2007 showed that vitamin D … [7] In this review, we will focus on the biology of vitamin D and summarize the …

  20121,507 citations

• Use of vitamin D in clinical practice

  JJ Cannell, BW Hollis - Alternative medicine review, 2008 - researchgate.net

  … -7,000 IU vitamin D3 per day should be sufficient to maintain yearround 25(OH)D levels … Parents can easily open 1,000 IU capsules containing powdered vitamin D and dissolve the …

  2008485 citations

• Vitamin D requirements for humans of all ages: new increased requirements for women and men 50 years and older

  MF Holick - Osteoporosis international, 1998 - search.proquest.com

  … Based on the available literature, it was recommended that the upper tolerable safe intake levels for infants 0 to 12 months is 1000 IU (25 μg)/day, and from age 1 year onwards is 2000 …

  1998163 citations

• Factors influencing vitamin D status.

  WG Tsiaras, MA Weinstock - Acta dermato-venereologica, 2011 - search.ebscohost.com

  … years) displayed a 98.7% lower mean rise in serum vitamin D^ levels following a single oral dose of 1000 IU per kg than controls (79). In severe parenchymal liver disease, there is both …

  2011791 citations

• Factors affecting 25-hydroxyvitamin D concentration in response to vitamin D supplementation

  H Mazahery, PR Von Hurst - Nutrients, 2015 - mdpi.com

  … /L] and 25(OH)D 2 increased in those receiving daily 1000 IU vitamin D 2 for 25 weeks [88]. … 25(OH)D 2 was 32 nmol/L per 1000 IU vitamin D 2 daily. The decline in 25(OH)D 3 could be …

  2015292 citations

• Vitamin D metabolism and guidelines for vitamin D supplementation

  I Ramasamy - The Clinical Biochemist Reviews, 2020 - pmc.ncbi.nlm.nih.gov

  … Government and scientific societies have published their recommendations for vitamin D intake which vary from 400–1000 IU/d (10–25 μg/d) for an average adult. It was not possible to …

  2020273 citations

• Vitamin D: What the Label Numbers Mean

  How to read vitamin D amounts on a Supplement Facts panel, the IU-to-mcg conversion, and why %DV matters.

  VitaSuppTrack Editorial· Jun 24, 2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-04-26. DSLD Label ID: 7885. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.