Fasting On The 5:2 Diet This diet may not be for everyone, but most can do it, eating normally for five days and then fasting for two days.  What does the fasting entail you ask?  Well, it is really quite simple, keep your calories  for the two fasting days at 500 calories for women and 600 for men, any type of food you want as long as the limited calories are eaten on that fasting day.  Think of it as "fasting" rather than "dieting".  Read more below... "EVERYONE kn...