There is a product called SERIOUS MASS by a company called OPTIMUM NUTRITION. You can find it at any health food store or do a search online and order directly from the company. I swear by this product. If you have 2 scoops, there are only 14 servings and it is expensive (like 30+) but I wouldn't do without it-EVER! They have vanilla, chocolate and strawberry and you can mix with milk or water and it is good either way. I also drink 3-5 boost/ensure shakes a day in addition to three full meals and many snacks. If you have any questions about this post, let me know, I'll check back later today and answer it!