With so many protein supplements being whey, do you really want to supplement cow protein into your body? Soy protein is also from a plant of course but many soy crops are genetically modified and hard on the digestive system. Soy has also been said to raise estrogen in men but who knows for sure? A safe bet is to take hemp protein with its non GMO easy on the earth and easy on the digestive system.

Throw some in a blender with a frozen banana and water and you will love it.
http://www.youtube.com/watch?v=X0frTNAyK7g