INTRODUCTIONDiabetes mellitus often simply referred to as diabetes, is a group of chronic metabolic diseases in which a person has high blood sugar, either because the body does not produce enough insulin or because cells do not respond to the insulin that is produced, this high blood sugar produces the classical symptoms of polyuria (frequent urination), polydipsia (increased thirst) and polyphagia (increased hunger) (Shoback et al., 2011).There are three main types of diabetes mellitus (DM)...