If you're overweight and eat fewer carbs instead of less fat for four weeks—without counting calories—you might lose about 8 pounds more than someone on a low-fat diet, and it might be because you're losing more body fat.

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.

If you're overweight and eat less fat for four weeks, you might lose more muscle than fat compared to someone who eats fewer carbs — even if both diets help you lose weight.

If you're a healthy woman with obesity and you eat very few carbs for 6 months, you'll likely lose more weight and body fat than if you eat low-fat foods — even if you're eating the same number of calories in both cases.

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 a healthy woman with obesity and you eat very few carbs for 6 months, you'll likely lose more weight and body fat than if you eat low-fat foods — even if both diets have the same number of calories.