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 Softgel(s) · 1 per day

Not Present

• 

  Vitamin D3, 1,000 IU Tablets

  Amazon.com

  $19.00
• 

  PhiNaturals 1000IU Softgels

  Phi Naturals

  $14.99
• 

  Vitamin D3 (1,000 IU)

  SFI Health

  $12.99
• 

  Geri-Care Tablets

  VitalityMedical.com5.0(2)

  $2.92
• 

  Nature Made Vitamin D3 IU

  Target4.6(2600)

  $9.49
• 

  Vitamin D3 1000 IU 180 Softgels

  Physicians Preference Vitamins

  $26.95
• 

  Pure Encapsulations Vitamin D3 IU

  Pure Prescriptions4.8(1200)

  $14.50
• 

  Vitamin D3 1000 IU Regular

  Omega Alpha Store USA4.9(49)

  $7.00

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.

• Whole Foods Market

  4.3 (1376)

  Grocery store

  774 Emerson St, Palo Alto, CA 94301

  Directions(650) 326-8676

• The Vitamin Shoppe

  4.4 (115)

  Vitamin & supplements store

  126 E El Camino Real, Sunnyvale, CA 94087

  Directions(408) 739-2084

• William's Natural Foods

  4.7 (126)

  Vitamin & supplements store

  12249 San Pablo Ave, Richmond, CA 94805

  Directions(510) 232-1911

• Walmart

  3.8 (6926)

  Department store

  30600 Dyer St, Union City, CA 94587

  Directions(510) 475-5915

• The Vitamin Shoppe

  4.5 (99)

  Vitamin & supplements store

  5592-A Santa Teresa Blvd, San Jose, CA 95123

  Directions(408) 629-3278

• Green's Nutrition

  4.6 (170)

  Health food store

  1906 Pacific Ave, Stockton, CA 95204

  Directions(209) 464-5738

• Vitamin World

  3.0 (8)

  Vitamin & supplements store

  116 Great Mall Dr, Milpitas, CA 95035

  Directions(408) 946-9301

• GNC

  3.4 (39)

  Vitamin & supplements store

  1165 S Main St, Manteca, CA 95337

  Directions(209) 825-1556

• Vitamin D: evolutionary, physiological and health perspectives

  M F. Holick - Current drug targets, 2011 - benthamdirect.com

  … mushrooms which produce vitamin D2. … vitamin D and usually contain 100 IU (2.5 mcg) vitamin D in a serving (Table 1). When given in physiologic doses both vitamin D2 and vitamin D3 …

  2011584 citations

• Vitamin D metabolism and guidelines for vitamin D supplementation

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

  … There may be a physiologic role for 24,25(OH) 2 D 3 in growth plate formation 19 or for the terminal product of C23 hydroxylation as a potent VDR antagonist. CYP3A4 can catalyse the …

  2020273 citations

• A phase 2 trial exploring the effects of high‐dose (10,000 IU/day) vitamin D3 in breast cancer patients with bone metastases

  E Amir, CE Simmons, OC Freedman… - … Journal of the …, 2010 - Wiley Online Library

  … vitamin D that is relatively linear up to 10,000 IU of vitamin D 3 per day, suggesting that this dose may be a physiologic … of a high physiological dose of vitamin D (10,000 IU per day) on …

  2010122 citations

• Physiological basis for using vitamin D to improve health

  SJ Wimalawansa - Biomedicines, 2023 - mdpi.com

  … When the concentration of 1,25(OH) 2 D increases above the physiologic threshold, it increases the expression of CYP24A1, 24-hydroxylase enzyme, and the production of FGF-23. …

  202371 citations

• Physiology of vitamin D—focusing on disease prevention

  SJ Wimalawansa - Nutrients, 2024 - mdpi.com

  Vitamin D is a crucial micronutrient, critical to human health, and influences many … skin-derived vitamin D is hydroxylated to form calcifediol (25(OH)D) in the liver, then to 1,25(OH) 2 D (…

  2024103 citations

• Vitamin D and health: evolution, biologic functions, and recommended dietary intakes for vitamin D

  MF Holick - Vitamin D: Physiology, molecular biology, and clinical …, 2010 - Springer

  … physiologic role of vitamin D is to maintain intra- and extracellular calcium concentrations in order to maintain essential metabolic functions, which are important for most physiologic …

  2010298 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 2012-01-25. DSLD Label ID: 4983. 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.