Diabetes is a chronic condition where the body cannot properly use glucose from food for energy. There are three main types of diabetes: type 1 caused by the immune system attacking insulin-producing cells; type 2 usually due to lifestyle factors like obesity and lack of exercise; and gestational diabetes which occurs during pregnancy. Risk factors for type 2 diabetes include obesity, family history, and certain ethnicities. Complications from high blood sugar levels can damage organs and tissues over time. Lifestyle modifications like following a whole foods plant-based diet, regular exercise, achieving a healthy weight, and stress management are effective non-drug approaches for preventing and managing diabetes. Medications are also used such as metformin, insulin, and other drugs to help