i want to gain muscle, and lose weight at the same time...i want to be taking protein shakes as part of my diet as well. each shake would be 400 calories, with 50 grams of protein, and i want to have about 150 grams each day, which translates into 1200 calories, if im only supposed to have 1500 calories a day to lose weight does that mean i should have those three shakes plus only one other meal?