Trans Fats . Have been partially hydrogenated producing fewer double bonds and, of those that remain, converting them from a cis to a trans configuration . Link to discussion of the chemical nature of fats. Omega-3 fats . Have at least one double bond three carbon atoms in from the end of the fatty acid molecule.
Linolenic acid is an example.
Fish oils are a rich source of omega-3 fatty acids. Many studies have examined the relationship between fat in the diet and cardiovascular disease. There is a proposal to have them included, but at present they are not. Minerals Calcium Calcium is essential to almost every function in the body. For most of these, such as blood clotting , intracellular signaling, muscle contraction , only trace amounts are needed.