In mice, eating a super high-fat, very low-carb diet causes fat to build up quickly in the liver — way more than with other diets — which could be harmful.

Feeding rats a diet super high in fat leads to fat building up in their livers after 16 weeks — kind of like what happens in fatty liver disease. Scientists saw this through lab tests, scans, and looking at liver tissue under a microscope.

If you have mild type 2 diabetes, cutting carbs way down — even without changing your calorie intake — might cut liver fat by nearly a third in just three months.

Eating too many carbs and calories — especially from sugary or processed foods — is what mainly causes fatty liver, not eating fat. Cutting out carbs or going on a carnivore diet might help reverse it.

Feeding rats a diet super high in fructose for 4 months doesn’t really hurt their liver overall, even though a few tiny signs of fat buildup show up under a microscope.

When mice with fatty liver disease eat a special low-carb diet with certain amino acids, their livers make 30-50% less new fat compared to mice eating high-fat food.