I'm a near-vegan - no meat of any sort, little eggs and dairy, and I find it pretty easy to get plenty of protein. Most vegetarians get more than enough protein in their diets. So what is it about your diet/health that makes you feel you're not getting enough protein? It might be a good idea to log what you're eating for several days to see if this is really an issue before adding highly processed soy protein powder (or any other kind of protein powder) to your diet. If you do need to add protein, it makes more sense (health-wise) to add it in the form of real food: eggs, dairy, legumes (including fake meats), whole grains, and nuts are the best vegetarian sources.