What? You don't need replacement meats. I eat veggies and cheap plant protein crumbles or tofu, both cheaper than meat equivalents, and I have regular blood work done and all levels are normal. I don't take any supplementary vitamins either. Going vegetarian is definitely not more expensive, and going vegan isn't either if you're willing to change your diet. Obviously, one to one replacements for egg, cheese, and meats are gonna be pricey, but you don't need those.