One of the biggest problems and doubts when it comes to intermittent fasting is how to join it to our sport and which leads us to several questions: what to eat before? What to eat next? Am I going to lose muscle mass? How do I lose weight more efficiently? or which intermittent fasting protocol will benefit me depending on the context 8/16, 4/20, or 1/23. If I do any sport on an empty stomach, such as basketball, go for a run, if I do weights, crossfit, play soccer or whatever sport you practice, in this book I am going to talk about all the possibilities you have when it comes to fasting. intermittent with sports, your daily routine and supplementation, if you want to use it.