Diets for weight loss usually involve restriction. The 5:2 diet relies on restricting calories, and the ketogenic diet relies on restricting particular types of food.
Research suggests, however, that restrictive dieting can lead to a higher body mass index (BMI) over time and a greater future likelihood of being overweight. There is also evidence suggesting food restriction can lead to a preoccupation with food, guilt about eating, and higher levels of depression, anxiety and stress. So, if diets don’t always help you lose weight and could