In Focus:

Weight Loss Really Can Reverse Diabetes

Type 2 diabetes is a chronic condition that affects 422 million people worldwide. For decades, doctors have treated it with medications designed to keep blood sugar levels down.

But in a paper published in the Lancet, researchers in the UK describe a landmark study in which people with diabetes went into remission—just by losing weight.

Nearly half of people in the study who were given a six-month diet plan and lost an average of 30 pounds went into remission and no longer had diabetes. None took any medications during that time to control their disease and relied on weight loss alone.

Type 2 diabetes is caused by the

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