It provides carefully combined with co-factors including vitamin d, zinc and magnesium which help to maintain normal bones. magnesium also contributes to normal functioning of the nervous system and normal muscle functions. the osteocare chewable tablets have been specially designed for those who have difficulty swallowing tablets.osteocare is the uk's no.1 bone health formula and has been scientifically developed on the basis of the very latest research to provide a rich source of calcium and co-factors including vitamin d which helps with the normal absorption of calcium by the body in a great tasting orange & peppermint chewable tablet.osteocare chewable contains the preferred d3 form of vitamin d. vitamin d3, also known as cholecalciferol, is the form of vitamin d that is produced by the skin on exposure to sunlight.