What is the benefit of the night time shake on the HSM days? I ask because on my HSM days that I have had I have not been hungry at all at night when it is time for the shake. Therefore I have only had a half shake instead of the whole. I am going to start my transition soon and will start taking a HSM every day. Do I only take the night shake if I am hungry or can I skip if not hungry? Just trying to figure out the benefit on HSM days. The other days (non-HSM) I am a bit hungry at night so it helps to go to bed not feeling hungry.