&gt;I also fast one day a week as it sharpens my mind.<p>I tried this and my body literally can NOT handle this. When I fast one day the next day my body goes nuts and  I eat everything in sight.<p>I fast til diner (5 pm) and then eat all my protein + calories. This builds a kind of &#x27;buffer&#x27; for random food I didn&#x27;t expect (lunch with someone I met that day, birthday cake, etc)