Vitamin D3 400 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) · 1–2 per day

Not Present

• 

  Pure Encapsulations Vitamin D3

  Pure For You4.8(1200)

  $18.50
• 

  Natural Supreme Softgels

  Natural Nutra

  $16.95
• 

  GNP Vitamin D3 400 IU Supplement 100 tablets

  Pasteur Pharmacy5.0(1)

  $1.59Lowest
• 

  Vitamin D3, 400 IU TABLET

  Amazon.com

  $5.40
• 

  Nature's Blend Vitamin D 400 IU

  Target5.0(6)

  $7.16
• 

  Now Vitamin D 3 IU

  PureFormulas.com4.8(2000)

  $4.60
• 

  Nature's Truth D3 400IU Tablets

  Walmart - Natures Truth LLC4.2(17)

  $6.99
• 

  Natural Factors Vitamin D3

  Swanson Health Products4.8(6200)

  $6.27

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• R Supplements LTD

  5.0 (89)

  Vitamin & Supplements Shop

  27 Colinglen Rd, Dunmurry, Belfast BT17 0LR

  Directions07857 830493

• Holland & Barrett - Dumfries

  4.2 (6)

  Vitamin & Supplements Shop

  Unit 16, The Loreburne Shopping Centre, Irish St, Dumfries DG1 2BD

  Directions0330 058 2640

• Comparative analysis of nutritional guidelines for vitamin D

  R Bouillon - Nature Reviews Endocrinology, 2017 - nature.com

  … of rickets, has demonstrated that vitamin D (at a dose of 400 IU per day) can protect against … that >200–400 IU of vitamin D 3 or vitamin D 2 can prevent vitamin D deficiency-associated …

  2017633 citations

• Benefits and requirements of vitamin D for optimal health: a review

  WB Grant, MF Holick - Altern Med Rev, 2005 - anaturalhealingcenter.com

  … The guidelines currently in place in the United States recommend 5 µg/day (200 IU/day) of vitamin D for children and younger adults, 400 IU/day for those ages 51-70, and 600 …

  2005895 citations

• Vitamin D: what is an adequate vitamin D level and how much supplementation is necessary?

  H Bischoff-Ferrari - Best practice & research Clinical rheumatology, 2009 - Elsevier

  … to the conclusion that vitamin D reduces the risk of … IU vitamin D per day, and fracture prevention required a received dose (treatment dose*adherence) of more than 400 IU vitamin D …

  2009195 citations

• Vitamin D supplementation: what's known, what to do, and what's needed

  ST Haines, SK Park - … Journal of Human Pharmacology and …, 2012 - Wiley Online Library

  … However, results from two randomized controlled trials included in the meta-analysis in which 3722 subjects received low doses (400 IU/day) of vitamin D showed no effect on fracture …

  2012163 citations

• Use of vitamin D in clinical practice

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

  … The authors recommend parents supplement breast-fed infants with at least 800 IU of vitamin D daily, while formula fed infants need 400 IU per day. Infants and toddlers may be at …

  2008485 citations

• Sources of vitamin D for humans

  E Benedik - Int J Vitam Nutr Res, 2022 - api.imrpress.com

  … intake for vitamin D for infants aged 7–11 months at 10 μg/day (400 IU/day), and for children aged1–17years and adults, including pregnant and lactating women, at 15 μg/day (600 IU/…

  2022307 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 2012-07-25. DSLD Label ID: 10590. 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.