Vitamin D3 2000 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

• 

  Natural Factors IU Vitamin D3

  Vitacost.com4.8(1600)

  $7.67
• 

  Natural Factors Vitamin D3

  Natural Factors4.8(759)

  $7.95
• 

  Natural Factors LipoMicel 2000IU Softgels

  Village Vitamin Store4.7(3)

  $11.33
• 

  Natural Factors Rx Omega-3 Ultra Strength Softgels

  Swanson Health Products4.9(404)

  $49.67
• 

  Natural Factors 60 Softgels with D3 & K2

  Natural Factors4.8(792)

  $17.95
• 

  Vitamin D3 2000iu Softgels Twin Pack by Natural Factors

  Wholesale Nutrition4.8(759)

  $13.99
• 

  Natural Factors Vitamin D3 2000 IU - 6-Pack Dietary Supplement - 4/7.5 Fl Oz

  Sales & Orders - Cozy Farm5.0(8)

  $46.83
• 

  Natural Factors Vitamin D3 2000 Iu Dietary Supplement - Case Of 6 - 4/7.5 Fz

  Sales & Orders - Pure Modern Living

  $38.99

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.

• Holland & Barrett - Burton On Trent

  4.1 (45)

  Vitamin & Supplements Shop

  8, Underhill Walk, Shopping Centre, Burton-on-Trent DE14 1DE

  Directions0330 058 2640

• Holland & Barrett - Derby

  3.9 (57)

  Vitamin & Supplements Shop

  SU110, London Rd, Derby DE1 2PG

  Directions0330 058 2640

• Holland & Barrett - Long Eaton

  4.5 (17)

  Vitamin & Supplements Shop

  63-65 High St., Long Eaton, Nottingham NG10 1HZ

  Directions0330 058 2640

• Holland & Barrett - Tamworth

  4.6 (20)

  Vitamin & Supplements Shop

  14a George St, Tamworth B79 7LN

  Directions0330 058 2640

• Holland & Barrett - Lichfield

  3.8 (24)

  Vitamin & Supplements Shop

  Three Spires Shopping Lichfield, 29 Baker's Ln, Centre, Lichfield WS13 6NF

  Directions0330 058 2640

• Vitamin D3 Supplementation: Comparison of 1000 IU and 2000 IU Dose in Healthy Individuals

  E Dědečková, R Viták, M Jirásko, M Králová… - Life, 2023 - mdpi.com

  … a daily dose of either 1000 IU or 2000 IU of vitamin D 3 is an adequate choice for maintaining sufficient vitamin D levels during the winter months. A daily dose of 2000 IU was, however, …

  202320 citations

• Vitamin D3 Supplementation at 4000 International Units Per Day for One Year Results in a Decrease of Positive Cores at Repeat Biopsy in Subjects with Low-Risk …

  DT Marshall, SJ Savage, E Garrett-Mayer… - The Journal of …, 2012 - academic.oup.com

  … of insufficient supplementation: in this study, 400 IU/d of vitamin D 3 for 7 yr as a treatment would … In fact, the actual vitamin D intake in this large study was approximately 280 IU/d if their …

  2012192 citations

• Evaluation of vitamin D3 intakes up to 15,000 international units/day and serum 25-hydroxyvitamin D concentrations up to 300 nmol/L on calcium metabolism in a …

  SM Kimball, N Mirhosseini, MF Holick - Dermato-endocrinology, 2017 - Taylor & Francis

  … Vitamin D 3 intakes of at least 6,000 IU/d were required for those with a normal BMI to achieve serum 25(OH)D concentrations above 100 nmol/L, or 7,000 IU/d and 8,000 IU/d for …

  201791 citations

• Use of vitamin D in clinical practice

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

  … of vitamin D deficiency in otherwise healthy patients with 2,000-7,000 IU vitamin D3 per day … Results of an RCT support the theory, finding 2,000 IU of vitamin D/day for one year virtually …

  2008485 citations

• Vitamin D: The “sunshine” vitamin

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

  … of vitamin D and summarize the mechanisms that are presumed to underlie the relationship between vitamin D and its … • 2000 IU/d for 6 weeks or 50,000 IU once weekly for 6 weeks to …

  20121,507 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

  … The major source of vitamin D for most humans comes from … of factors that limit the cutaneous production of vitamin D3. … 1000 IU (25 μg)/day, and from age 1 year onwards is 2000 IU …

  1998163 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 2011-11-25. DSLD Label ID: 2281. 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.