Vitamin D3 1000iu (25µg) 500. It is utilised by the body to aid the absorption of Calcium and Phosphorus, and is important for maintaining normal bones, teeth and muscle function. Bulking Agents (Dicalcium Phosphate, Microcrystalline Cellulose), Vitamin D3 (Cholecalciferol, (Sucrose, Modified Starch, Maltodextrin)), Anti-caking Agents (Stearic Acid . ).