Hi Amy, In response to your inquiry for protein drinks>>>>the highest one out there is made by Optimum Nutrition, and it is called "Pro-Complex" it is 55g of protein, the highest made you can buy! It is powdered, and you can mix with water, nonfat milk, crystal lite, juice, whatever, Vanilla is great, make all kinds of drinks. You can order it over the net at EATING HEALTHY.COM OR buy at health food stores (they can order it) if they don't carry it. GNC is pretty high, so try a health food store first. GNC will match their price if less. Good luck, it is the best stuff and recommended highly here. God Bless