What's its bioavailability? How well do we digest it and absorb it? With animal proteins... the digestion/absorption is pretty close to 100. It's usually 95% or higher for all animal proteins ... In a plant, the protein is there for the purpose of the plant. And so a lot of it is attached to fibers, to structures. ... When you start to isolate that, to just eat it in a raw form, it may only be 60-70 % available, because we can't digest the fiber.