Sentinel Calcium with Vitamin D Tablets: Comprehensive Bone and Immune Support. ‣ Contains 500mg of calcium and Vitamin D per tablet. ‣ Enhances calcium absorption for stronger bones. ‣ Supports immune health with added Vitamin D. SUGGESTED USE: Take one tablet daily with a meal, or as directed by your healthcare provider. INGREDIENTS: Calcium, Vitamin D, Microcrystalline Cellulose, Croscarmellose Sodium, Magnesium Stearate.