D3 10 mcg (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 per day

Not Present

• 

  100 Count Unit Dose Tablets

  Pasteur Pharmacy5.0(2)

  $28.39
• 

  21st Century Chewable Vitamin D3

  iHerb4.8(728)

  $4.99
• 

  21st Century Vitamin D3

  iHerb4.8(4000)

  $3.00Lowest
• 

  21st Century D3 Tablets

  21st-century-vitamins4.8(34)

  $7.49
• 

  21st Century Chewable Tablets

  Walmart - myREVCO

  $9.54
• 

  21st Century Tablets D-1000

  Target4.8(4000)

  $13.99
• 

  21st Century Cal Mag Zinc + D3 Tablets

  Hargraves Online Healthcare4.8(5600)

  $5.99
• 

  21st Century 1000 Iu Softgels

  21st-century-vitamins4.8(97)

  $9.49

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.

• Vitality Supplements 3-1-5

  5.0 (3)

  Vitamin & Supplements Shop

  Mannin Way, Caton Rd, Lancaster LA1 3PE

  Directions07787 304522

• Evolution Supplements

  5.0 (1)

  Vitamin & Supplements Shop

  Central Dr, Morecambe LA4 4DW

  Directions07843 557374

• Purality Health Europe - Official UK & Europe Supplier for Purality Health, EverBella & SomaLeaf

  5.0 (21)

  Vitamin & Supplements Shop

  Warton Rd, Carnforth LA5 9EX

  Directions0300 373 9319

• Synergistics Europe Ltd

  5.0 (28)

  Vitamin & Supplements Shop

  Warton Rd, Carnforth LA5 9EX

  Directions0300 373 9319

• Holland & Barrett - Lancaster

  3.3 (20)

  Vitamin & Supplements Shop

  26 Penny St, Lancaster LA1 1UA

  Directions0330 058 2640

• Holland & Barrett - Barrow In Furness

  4.6 (11)

  Vitamin & Supplements Shop

  206-208 Dalton Rd, Barrow-in-Furness LA14 1PR

  Directions0330 058 2640

• Holland & Barrett - Cleveleys

  4.0 (33)

  Vitamin & Supplements Shop

  23 Victoria Rd W, Cleveleys, Thornton-Cleveleys FY5 1BS

  Directions0330 058 2640

• Holland & Barrett - Blackpool

  3.9 (38)

  Vitamin & Supplements Shop

  33 Corporation St, Blackpool FY1 1EJ

  Directions0330 058 2640

• Vitamin D fortification in the United States and Canada: current status and data needs

  MS Calvo, SJ Whiting, CN Barton - The American journal of …, 2004 - academic.oup.com

  … not less than 300 IU and not more than 400 IU of vitamin D” (… is expressed not in micrograms or international units but as a … the United States: importance to health status and efficacy of …

  2004807 citations

• Safety issues of vitamin D supplementation

  A Zittermann, S Prokop, JF Gummert… - Anti-Cancer Agents in …, 2013 - ingentaconnect.com

  … Abstract: Vitamin D deficiency is a re-emerging global health … 4 nmol/l per microgram oral vitamin D3 can be observed. At … oral vitamin D3 intake of 10 µg (400 IU) to 15 µg (600 IU) daily …

  201389 citations

• Implementation strategies for improving vitamin D status and increasing vitamin D intake in the UK: current controversies and future perspectives: proceedings of the …

  JL Buttriss, SA Lanham-New, S Steenson… - British Journal of …, 2022 - cambridge.org

  … with an intake at an RNI of 10 μg/d (400 IU/d), the upper tail of … to supplements at child health surveillance visits will prompt … that they are still compared on a microgram basis, the need to …

  202267 citations

• One hundred years after Vitamin D discovery: Is there clinical evidence for supplementation doses

  S Ghanaati, J Choukroun, U Volz, R Hueber… - Int J Growth Factors …, 2020 - academia.edu

  … For infants 400 IU/day, for all other groups, 800 IU/day … intake of 5000 IU/day to maintain the healthy Vitamin D level of … and confusion between micrograms and international units. For …

  202027 citations

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

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

  … IU/day) of vitamin D for children and younger adults, 400 IU/… Vitamin D and health in the 21st century: bone and beyond. … of the vitamin D3 adequate intake versus 100 mcg (4000 IU) per …

  2005895 citations

• Vitamin D supplementation: a review of the evidence arguing for a daily dose of 2000 international units (50 µg) of vitamin D for adults in the general …

  P Pludowski, WB Grant, SN Karras, A Zittermann, S Pilz - Nutrients, 2024 - mdpi.com

  … -skeletal health outcomes is … (10–12 ng/mL) and ≥50 nmol/L (20 ng/mL) in 97.5% of the population, it can be assumed that a daily vitamin D supplement with 400 IU (10 µg) and 800 IU (…

  2024104 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-08-23. DSLD Label ID: 206010. 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.