For overweight people with a fatty liver condition, following a very low-carb, low-calorie diet for 8 weeks can cut down the fat in their liver by about two-thirds.

When overweight people with fatty liver disease eat fewer carbs and calories, they lose weight and belly fat, but their body's ability to handle sugar doesn't really change.

If you're an obese adult with fatty liver disease, switching to a very low-carb, high-fat diet for just two weeks might cut your liver fat by nearly half—and you could see improvements in as little as one day.

For overweight people with fatty liver disease not caused by alcohol, eating fewer carbs and calories helps their liver handle sugar better by 22%, based on a small test group.

For overweight people with a fatty liver condition not caused by alcohol, eating fewer carbs and calories might lower some fat levels in their blood, but it doesn't seem to change other cholesterol or sugar levels much, according to a small study.

A special low-carb diet for 12 weeks helps overweight people with diabetes lose fat from their liver, making their liver healthier.