I was already a Vegan before my RNY and I have had no problems at all getting in my protein. I will never go back to being a meat eater. I feel amazing and lost 101 lbs before my RNY. Here is a list of high protein foods...Seitan 3 oz has 21 g protein, Black beans 1 cup 15 g, chickpeas 1 cup 15 g, pinto beans 1 cup 15 g, tofu 4 oz 11 g. I could go on forever lol. And as for your protein shakes, Orgain Organic Protein Plant-Based Powder, Vanilla Bean is amazing and you can get it on Amazon. Most of the people that work in my WLS office have switched to using it :-)