The Nutraceutical Glucosamine Chondroitin Sulphate Methyl Sulfonyl Methane Vitamin D3 Calcium Carbonate And Minerals Tablet is used to prevent or treat low blood calcium levels in people who do not get enough calcium from their diets. Vitamin D3 is important for maintaining calcium balance in the body and this is very important as it is crucial for the normal functioning of the nervous system, and also for bone density. The Nutraceutical Glucosamine Chondroitin Sulphate Methyl Sulfonyl Methane Vitamin D3 Calcium Carbonate And Minerals Tablet is very safe.