Don't go on a diet during menstruation, because it has made your body very tired. If you stop eating, it is easy to cause anemia.

Eating during menstruation won't make you fat. If you are greedy, you can use this time to eat something you like. Of course, don't overeat, just do as usual.

Even when you are dieting, you should eat some eggs and meat in moderation, otherwise you will rebound badly when you start eating after dieting.