D3 25 mcg (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

• 

  21st Century D3 Tablets

  Walmart - iHerb4.8(3000)

  $3.45
• 

  21st Century Vitamin

  HealthWarehouse.com4.8(3000)

  $11.64
• 

  21st Century 1000 Iu Softgels

  iHerb4.8(3000)

  $5.81
• 

  21st Century Tablets D3 500

  21st-century-vitamins4.8(208)

  $10.99
• 

  21st Century 1000IU Tablets

  eBay - davjoe-texcwe5.0(2)

  $5.99
• 

  Vit D-3 25MCG 1000IU Sgc 250CT 21ST Cent

  Inman Pharmacy

  $9.19
• 

  Vitamin D3 1000 IU

  Valley Integrative Pharmacy4.8(1200)

  $5.95
• 

  Country Life Vitamin D3

  Walmart4.8(154)

  $16.36

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

• CVS

  2.5 (166)

  Vitamin & supplements store

  510 Blackwell Rd, Warrenton, VA 20186

  Directions(540) 347-1621

• CVS

  2.1 (143)

  Vitamin & supplements store

  15250 Washington St, Haymarket, VA 20169

  Directions(703) 753-1032

• CVS

  3.2 (96)

  Vitamin & supplements store

  14380 McGraws Corner Dr, Gainesville, VA 20155

  Directions(703) 753-3051

• CVS

  2.4 (98)

  Vitamin & supplements store

  10250 Bristow Center Dr, Bristow, VA 20136

  Directions(703) 369-1739

• Use of vitamin D in clinical practice

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

  … in otherwise healthy patients with 2,000-7,000 IU vitamin D3 … diet and supplements of approximately 1,000 IU (25 mcg) per … may require up to 10,000 IU per day to achieve a 25(OH)D …

  2008485 citations

• Targeted 25-hydroxyvitamin D concentration measurements and vitamin D3 supplementation can have important patient and public health benefits

  WB Grant, F Al Anouti, M Moukayed - European journal of clinical …, 2020 - nature.com

  … in those with baseline 25(OH)D concentrations ≥25 nmol/L (adjusted odds ratio 0.75, 0.60–0.95; P for interaction = 0.006)” [6]. Thus, supplementing with 1000–2000 IU/day of vitamin D …

  2020108 citations

• Safety issues of vitamin D supplementation

  A Zittermann, S Prokop, J F. Gummert… - Anti-Cancer Agents in …, 2013 - benthamdirect.com

  … in apparently healthy free-living individuals a daily amount of up to 250 µg (10,000 IU) is safe. … (OH)D of up to 4 nmol/l per microgram oral vitamin D3 can be observed. At high doses, eg …

  201388 citations

• Vitamin D: evolutionary, physiological and health perspectives

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

  … are fortified with vitamin D and usually contain 100 IU (2.5 mcg) vitamin D in a serving (Table 1). … 25(OH)D levels [90, 91]. When healthy adult men and women ingested either 1000 IU of …

  2011583 citations

• Vitamin D supplementation for prevention of type 2 diabetes mellitus: to D or not to D?

  AG Pittas, R Jorde, T Kawahara… - The Journal of …, 2020 - academic.oup.com

  … the fastest growing health challenges of the 21 st century, as … IU weekly [~2857 IU per day] in the Tromsø study, 0.75 mcg … high-dose vitamin D (≥1000 IU per day). The authors reported …

  2020146 citations

• UV index-based model for predicting synthesis of (pre-) vitamin D3 in the mediterranean basin

  MA Kallioğlu, A Sharma, A Kallioğlu, S Kumar… - Scientific Reports, 2024 - nature.com

  … paper will impact awareness for academic-medical users. … Especially at the beginning of the twenty-first century, more than 1 … of 1000 IU/day (25 mcg) determined according to this rule. …

  202431 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-09-24. DSLD Label ID: 207485. 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.