Studies show that low testosterone levels in males have an association with type 2 diabetes, the most common form of diabetes.
Testosterone helps the body's cells increase glucose, or blood sugar, in response to insulin, a hormone that regulates glucose. Reduced testosterone can affect insulin resistance. This can cause the body to produce more insulin to keep glucose levels normal.
When the cells are full of glucose, the body stores the excess in fat cells, which may lead to conditions such as type 2 diabetes and obesity.