Benefits of Naturalis Ca + Vitamin D: Calcium plays an important role in maintaining bone health and contributes to proper muscle function and nerve impulse transmission. It contributes to blood clotting and normal energy metabolism. Vitamin D contributes to maintaining healthy bones and teeth. Active ingredients Calcium with vitamin D from Naturalis Calcium (300 mg), vitamin D3 (5 mcg) Dosage and administration of Calcium with Vitamin D from Naturalis 1 – 2 tablets per day, dissolved in 200 ml of water. Do not exceed the recommended daily dose.