Calcium Citrate is a more bioavailable form of Calcium than Calcium Carbonate. Some Other calcium salts can cause calcium deposits but Calcium citrate absorbs very easily in the body. Calcium Tablets are a unique combination of calcium, magnesium, zinc & vitamin D3 which increases the bioavailability of calcium and makes it a complete solution. Supplement for both Men & Women Each serving of one tablet for Men & Women provides 1000mg Calcium along with 400 IU Vitamin D, 600mg Magnesium & 15mg Zinc. Highly absorbable Calcium Tablets is one of the best Calcium Supplement as Calcium along with Vitamin D, Magnesium and Zinc helps in faster absorption of Calcium. Calcium Plus is easily digested and does not cause bloating.