In Ayurveda, obesity is known as Medarog, which is caused by the aggravation of Kapha. Kapha is an Ayurvedic humor which is dense, heavy, slow, sticky, wet and cold in nature. It governs all structure and lubrication in the mind and body apart from controlling weight and formation of all the seven tissues - nutritive fluids, blood, fat, muscles, bones, marrow and reproductive tissues.
In a balanced state, Kapha gives nourishment to these tissues through various micro channels. However, when it is aggravated, Kapha leads to production of toxins in the body. These toxins are heavy and dense in nature and accumulate in weaker channels of the body, causing their blockage. In the case of an obese person, toxins accumulate in Medovahi Srotas (fat channels), thereby leading to an increase in the production of fat tissue (Meda Dhatu). When the body produces more fat tissues, it causes an increase in weight.
The Ayurvedic line of treatment for obesity begins with the pacification of Kapha Dosha. This can be done by eliminating Kapha-aggravating foods from the diet. Next, the treatment also focuses on cleansing of the Medovahi channels through cleansing herbs so that excess weight can be reduced.