Is fasting an effective way to lose weight?
Fasting forces the body to start burning fat. So on a basic level, restricting your food intake can be an effective weight loss technique – but scientists are divided on which approach gives dieters the most health benefits. Intermittent fasting, such as the ‘5:2 diet’, recommends two consecutive, low-carbohydrate, 500-800 calorie days to safely lose weight.
However, you need longer periods (three to four days without carbohydrates) to put your body into ketosis, the state where your appetite will start to decrease. Experts don’t recommend trying this without medical backing, cautioning that the long-term consequences of high-intensity fasting are not fully understood.