The thing is I have this trendy Mutant Muscle Gainer that advises me to take 4 cups of it in a day when I workout - 2 cups before the workout and 2 cups after. This goes pretty well to me. But the thing is, however, that I feel a little bit ashamed when I don't drink it during the days I'm not exercising - I'm drinking it to gain weight mass, but I'm not drinking it regularly as I'm only going to the gym 3 days a week.
Should I be bothered at all? Or should I drink this thing each and every day?