The main bad side effect is that you need to be really conscious about food. It’s easy to eat not enough or not to eat at all. Then unavoidably you feel really

The main bad side effect is that you need to be really conscious about food. It’s easy to eat not enough or not to eat at all. Then unavoidably you feel really weak and metabolism slows down. You need to be really conscious to eat enough healthy foods, especially if you want to exercise.