1 Product identity
Ingredient risk
1 ingredient to use with caution
Oyster Shell Calcium 500 mg with D
BrandBasic Vitamins→Single Vitamin and Mineral Tablet or Pill 6 ingredients 1 caution DSLD #250309Net contents: 225 Tablet(s)
Target: Adults and Children 4 years and above
DSLD entry: 2021-05-22
2 Ingredients (6)
IngredientGroupSafety
Microcrystalline CelluloseCellulose—
MaltodextrinMaltodextrin—
Contains less than 2% ofHeader—
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
5 Data source
DSLD ID250309
Full labelView at NIH DSLD →
SourceOffice of Dietary Supplements, NIH
Market statusOn market
Entry date2021-05-22
6 More from Basic Vitamins
View Basic Vitamins Safety Scorecard → 11 products
B-1 100 mgCalcium 600 mg with DCalcium 600 mg with DL-Arginine 500 mgMini Fish Oil 1290 mgRiboflavin Vitamin B-2 100 mg7 Cite this page
Vancouver
Pkhakadze G. Oyster Shell Calcium 500 mg with D — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Jul 27]. Available from: https://supplement.ge/products/dsld-250309/
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
Publisher: PHIG