Type 2 diabetes is almost always preventable, often treatable, and sometimes even reversible through diet and lifestyle changes. Like other leading killers—especially heart disease and high blood pressure—type 2 diabetes is an unfortunate consequence of your dietary choices. But even if you already have diabetes and its complications, there is hope. Through lifestyle changes, you may be able to achieve a complete remission of type 2 diabetes, even if you’ve been suffering with the disease for decades.