In one study, a group of people who ate 1,100 calories per day slowed their metabolic rate more than twice as 5 much as those who consumed about 1,500 calories per day for four consecutive days (20). Therefore, it is important that you don’t restrict your calorie intake too much or for too long.

In one study, a group of people who ate 1,100 calories per day slowed their metabolic rate more than twice as 5 much as those who consumed about 1,500 calories per day for four consecutive days (20). Therefore, it is important that you don’t restrict your calorie intake too much or for too long.