Even though fat levels in the blood go up, a super low-carb diet for just 6 days seems to dramatically improve how well the liver responds to insulin in people with fatty liver and extra weight — which goes against what doctors usually expect.

If you're overweight and have fatty liver, going on a keto diet for just 6 days might make your liver burn fat for fuel way more—like over 3 times as much—instead of storing it.

If you're overweight and have fatty liver, going on a keto diet for just 6 days might cut the fat in your liver by over a quarter—even if you barely lose any weight.

If you're overweight and have fatty liver, going on a keto diet for just 6 days might supercharge your liver's energy system and shift it into fat-burning mode, possibly helping your body make more ketones.

If you're overweight and have fatty liver, going on a keto diet for just 6 days might reduce how your liver burns fuel, pushing your body to make more ketones instead.

When mice with fatty liver disease ate a special low-carb diet with extra amino acids, it didn't help their insulin problems. Their bodies still handled sugar poorly, just like mice on a high-fat diet.