Calcium is naturally occurring within our bones and teeth, in fact, it is the most abundant mineral within the entire human body. It is also found within a range of foods which include seeds, cheese, sardines and almonds. Despite all of this, calcium deficiency is actually quite common which is why supplements like this are so important. In addition to the support of healthy teeth and bones, calcium also promotes energy yielding metabolism and neurotransmission. These high quality Calcium Tablets from Naturesupplies have an added vitamin d3 125iu to each supplement.