are required to build soft and hard body tissue. Without then we wouldn't exist. They also help out with the nervous system the contraction of mussels and help the blood flow properly. are classified into 2 major groups. The major elements such as calcium, magnesium, iron, iodine etc. Then the trace elements such as copper, manganese fluorine and zinc. Once of the most important is calcium. Calcium is used to build up your bones. It also helps to keep your teeth strong. About 90% of all calcium is stored in your bone's. It also helps with m ....