Eating very few carbs and more fats for 12 weeks makes the dangerous belly fat around organs shrink by about a quarter in people who have too much body fat.

Adding high-intensity interval training to a very low-carb diet doesn't make the belly fat reduction any better than just doing the diet alone in people with excess body fat.

When people with excess body fat eat very few carbs and more fats, they lose about 4-5% of their muscle mass within a month, and this muscle loss continues for the full 12 weeks of the diet.

If you're overweight and eat fewer carbs instead of less fat for four weeks, you might lose more body fat—even if you lose the same amount of total weight as someone on a low-fat diet.

Eating very few carbs and more fats for 12 weeks makes people with excess body fat lose about 6-9 centimeters from their waist size.

For middle-aged people with extra weight, cutting carbs a lot might burn more belly fat — especially the dangerous kind around organs — even if you lose the same total weight as someone on a low-fat diet.