This document discusses diabetes and anti-diabetic drugs. It defines diabetes as a chronic health condition that affects how the body turns food into energy. The three main types of diabetes are type 1, type 2, and gestational diabetes. Type 1 is an autoimmune disease that destroys insulin-producing cells, type 2 involves insulin resistance, and gestational only occurs during pregnancy. Anti-diabetic drugs work by altering blood glucose levels. Examples mentioned are Pterocarpus marsupium and Gymnema sylvestre, which are used traditionally to treat diabetes.