Nature\'s Bounty Calcium Magnesium Zinc 100 Caplet It is a food supplement. In each caplet; Vitamin D3 (cholecalciferol) 200IUCalcium (carbonate, gluconate) 333mgMagnesium (oxide, gluconate) 133mgZinc (gluconate, citrate) 8mgSugar, milk, lactose, soy, gluten, Does not contain wheat, yeast or fish. No synthetic colourants, sweeteners or preservatives are used. Usage: Adults: 1 caplet per day, preferably at mealtime.