well i am cutting as well and been doing this for years and have friends who compete so listen up (and I am sure people on here will agree with me). You can and should take
casein all the time (cut or bulk) along with whey. Casein before bed is fine, it prevents catabolism because when your body is sleeping you still are burning calories (although its a slow process when you sleep because your metabolism is low, but your still burning calories). Your body will look to your muscles for energy to burn if there is nothing in your system to process and digest to aid in metabolism. Now if you have a casein shake before bed you now fill that void and prevent your muscles from being broken down for energy because you have a form of energy in your system now to use as fuel. The body is lazy by nature and requires less energy to sustain then muscle, so the body rather get rid of muscle then fat because of that reason. Take the casein, you won't be disapointed, you wont gain excess fat, but you might find out you gain a little extra muscle because you are preventing your body from breaking the muscle you are trying to gain from being used as a form of energy.
