Hey, check this out, i've found out that when you exercise you should have something that has alot of protien in it, like a protien shake is always good, especially if you work out at night, if it's your last workout of the day, finish off with a good protien shake and just that, because when your muscles have been worked alot, they need nutrition, and if you eat something unhealthy, you'll only gain more fat, but if you have a nice protien shake, the protien will help your muscles develop more and you're more likely to burn fat and increase your muscle strength.