Does the keto diet help people lose weight?

The keto diet aims to force your body into using a different type of fuel. Instead of relying on sugar (glucose) that comes from carbohydrates (such as grains, legumes, vegetables, and fruits), the keto diet relies on ketone bodies, a type of fuel that the liver produces from stored fat. It can help some people jump start their weight loss. But longer term keto diets have health risks because they tend to be high in saturated fats.