1 Product identity
Ingredient risk
1 ingredient to use with caution

D3 25 mcg (1000 IU)

Brand21st CenturySingle Vitamin and Mineral Tablet or Pill 7 ingredients 1 caution DSLD #206613
Net contents: 110 Tablet(s)
Target: Adults and Children 4 years and above
DSLD entry: 2019-09-24
2 Ingredients (7)
IngredientGroupSafety
Vitamin D3Vitamin DUse with Caution
CalciumCalciumConditionally Safe
CelluloseCellulose
Croscarmellose SodiumCroscarmellose Sodium
MaltodextrinMaltodextrin
Stearic AcidStearic Acid
Contains Less Than 2% ofBlend
Ingredient amounts require the full DSLD label. View full label at NIH DSLD →
⚠️ Use with caution — restricted in some markets
Vitamin D — Granulomatous diseases (sarcoidosis, TB) — unregulated extra-renal CYP27B1 can cause life-threatening hypercalcemia even at standard doses [2][21]
3 Safety cross-reference
Vitamin D — Use with Caution
⚠ Hypercalcemia at >10,000 IU/day
⚠ Vascular calcification risk
Calcium — Conditionally Safe
⚠ Cardiovascular risk debated >1,000 mg/day
⚠ Kidney stones
Sodium — Limited Evidence
⚠ Hypertension
⚠ Fluid retention
4 Label claims
• Nutrient
• All Other
• Structure/Function
5 Data source
DSLD ID206613
SourceOffice of Dietary Supplements, NIH
Market statusOn market
Entry date2019-09-24
6 More from 21st Century
View 21st Century Safety Scorecard → 179 products
600 + D3 plus Minerals600 Calcium Supplement600+D3600+D3600+D3Acai 1000 mg
7 Cite this page
Vancouver
Pkhakadze G. D3 25 mcg (1000 IU) — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Jun 24]. Available from: https://supplement.ge/products/d3-25-mcg-1000-iu-206613/
CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.
GP
Analyzed by SupplementIndex
PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD
Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG