Glucofort This occurs for a number of reasons; fat cells (particularly those around the abdomen) contain an enzyme called aromatase. This enzyme converts the testosterone in the body into estrogen. Therefore overweight men may be turning a lot of the testosterone in their bodies into estrogen. Estrogen stimulates the development of breast tissue. The liver [plays an important role] in breast development too. It is the liver’s job to break down excess estrogen […] and then excrete it from the body. If the liver is sluggish, or fatty, or inflamed, it cannot do this job properly and estrogen accumulates. Men who eat a lot of sugar or carbohydrate have lower levels of testosterone in their bloodstream because their liver manufactures more sex hormone binding globulin. This is a carrier molecule that transports .