When obese women follow a very low-carb, high-fat diet (ketogenic), they lose more belly fat and keep more muscle than when they just eat fewer calories.

Eating mostly fats and very few carbs for 3 months helps overweight people lose fat and weight, on average about 5% body fat and 3.5 kg.

When obese women eat fewer carbs (but not fewer calories), they lose more belly fat and shrink their waistline more than when they just eat less food overall.

Combining keto diet with skipping meals two days a week helps overweight people lose more fat and weight than doing either one alone.

When adults follow a ketogenic diet, they tend to lose weight - about 2.5 kg on average compared to other diets, according to research combining 27 studies.

When obese women eat extremely few calories (under 800 per day), they sometimes gain belly fat, lose muscle, and don’t lose much fat—making it worse than eating a little less.