Ingredients of this product are as follows: Calcium carbonate, magnesium oxide, bulking agents: E341/E470b, Disintegrants (INS 468 & INS 1202), Binder (INS 1201), Glidant (INS 551), Lubricant [(INS 470(iii)], Glazing Agent [(INS 553(iii)], Cholecalciferol.