If an obese person with type 2 diabetes eats only 600–850 calories a day for a few months, about half of them will no longer have diabetes after a year—and about a third will still be diabetes-free two years later, especially if they lost a lot of weight early on and haven’t had diabetes for very long.

If adults with type 2 diabetes use a low-carb diet app for 3 months, they end up eating fewer calories without trying, mostly because they eat less carbs — and they naturally replace those carbs with more protein and fat.

If adults with type 2 diabetes lose 5% or more of their weight in 3 months using a low-carb app, they see better blood sugar control than those who lose less weight.

When very overweight people have weight-loss surgery, many of them stop needing diabetes medicine within months—even before they lose a lot of weight—because their body starts using insulin better and their gut sends out helpful signals. About a third to almost half still stay diabetes-free five years later.

People with type 2 diabetes who eat less healthy foods are more likely to be overweight or have high blood sugar than those who eat healthier.

People with type 2 diabetes who eat less healthy foods are more likely to be overweight or have high blood sugar than those who eat healthier.