Re: Protein Shakes
Any Health Food store (GNC, Vitamin Shoppe, Puritan Pride, etc.) has virtually pure protein powder (choice of soy or whey) between $6 and $9 per pound. The amino acid structures are very similar...buy for price.
To get the shake tasting good, just add things like cocoa<pure, sugarless>, fruit, vanilla, flavor extracts, artificial sweetner. Thicken with egg or vegetable thickeners like xanthan or guar gum. More protein if you use skim milk, fewer calories with ice water.
Choices are endless.