The first link explains how protein powder is made and how some are not vegan because of the rennet.
http://www.evolutionhealth.com/WheyProtien/faqs.htm
http://www.iherb.com/ProductDetails.aspx?c=1&pid=343
http://aliveandaware.net/Natures-First-Law.../B000EHCU02.htm
There are more flavors than what the links take you to .... this was just to give people the name of the powders. I've not tried any of them, so I can't offer an opinion about them.
for these links...
