1 Product identity
Ingredient risk
3 ingredients to use with caution
Os-Cal Ultra
BrandGlaxoSmithKline→Multi-Vitamin and Mineral (MVM) Other (e.g. tea bag) 18 ingredients 3 caution DSLD #82021Net contents: 120 Coated Caplet(s)
Target: Adults and Children 4 years and above
DSLD entry: 2018-02-23
2 Ingredients (18)
IngredientGroupSafety
Acacia GumAcacia—
Polyvinyl AlcoholPolyvinyl alcohol—
Contains less than 1% 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]
Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].
Zinc — Chronic zinc >40 mg/day without copper causes copper deficiency: anemia, neutropenia, myeloneuropathy [1].
3 Safety cross-reference
Vitamin C — Generally Safe
⚠ GI distress at high doses
⚠ Kidney stones risk >1g/day
Vitamin D — Use with Caution
⚠ Hypercalcemia at >10,000 IU/day
⚠ Vascular calcification risk
Vitamin E — Conditionally Safe
⚠ Increased bleeding risk
⚠ All-cause mortality at >400 IU/day
Calcium — Conditionally Safe
⚠ Cardiovascular risk debated >1,000 mg/day
⚠ Kidney stones
Magnesium — Use with Caution
⚠ Diarrhea (especially oxide)
⚠ Accumulates in renal impairment
Zinc — Use with Caution
⚠ Copper deficiency at >40 mg/day
⚠ Nausea, metallic taste
Copper — Conditionally Safe
⚠ Hepatotoxicity at high doses
Manganese — Conditionally Safe
⚠ Neurotoxicity with chronic excess
Sodium — Conditionally Safe
⚠ Hypertension
⚠ Fluid retention
Boron — Conditionally Safe
⚠ Reproductive toxicity in animals
4 Label claims
• Nutrient
• All Other
• Structure/Function
5 Data source
DSLD ID82021
Full labelView at NIH DSLD →
SourceOffice of Dietary Supplements, NIH
Market statusOn market
Entry date2018-02-23
6 More from GlaxoSmithKline
View GlaxoSmithKline Safety Scorecard → 6 products
Citrucel With SmartfiberCitrucel With Smartfiber Orange FlavorOs-Cal Chewable Vitamin D3 500 mg Calcium 600 IU Vitamin D3Os-Cal Extra D3 with Vitamin D3 500 mg Calcium 600 IU Vitamin D3Scott's Emulsion Cod Liver Original7 Cite this page
Vancouver
Pkhakadze G. Os-Cal Ultra — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Jun 24]. Available from: https://supplement.ge/products/os-cal-ultra-82021/
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