Vitamin D3 1000 IU (25 ug) provides pure vitamin D as D3, the preferred form of vitamin D. Vitamin D contributes to the maintenance of normal muscle function and normal bones. Vitamin D also contributes to the normal function of the immune system.provides 1000 IU (25 ug) vitamin D3 per capsulewith vitamin D as D3, the preferred form of vitamin Dcontributes to normal absorption/utilisation of calcium and phosphoruscontributes to the maintenance of normal muscle function, teeth and bonescontributes to the normal function of the immune system IngredientsHypoallergenic plant fibre (microcrystalline cellulose), cholecalciferol. Vegetarian capsule (hydroxypropyl methyl cellulose). Directions For UseAs a food supplement, take 1-4 capsules daily, with meals, or as directed by a healthcare professional. PrecautionsIf you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use. Use only if safety seal is intact. Food supplements should not be used as a substitute for a varied diet. Do not exceed the stated daily dosage. Keep out of the reach of young children.