Diabetes is a disease in which the body has a shortage of insulin, a decreased ability to use insulin, or both. Insulin is a hormone that allows glucose (sugar) to enter cells and be converted to energy. When diabetes is not controlled, glucose and fats remain in the blood and, over time, damage vital organs. Mercury has been shown to destroy beta cells and bring about insulin resistance. In addition, mercury is known to cause inflammation and oxidative stress, thereby influencing or exacerbating diabetes.