We are offering Weight Gain Supplement. Weight Gain 3000 can be a potent ally to your high intensity training and mass gain if you need more than just a regular meal. Combining calcium caseinate proteins with both complex and simple carbohydrates Weight Gain 3000 has the ingredients for both a rapid and sustained energy release accompanied with the caseinate amino acids. With added B vitamins. A serving adds 27.2 g of protein and 585 kcal to your intake.