I agree. Where I live, in Europe, tofu and protein extracts are many times more expensive than meat, e.g. 5 times more expensive than chicken breast per their

I agree. Where I live, in Europe, tofu and protein extracts are many times more expensive than meat, e.g. 5 times more expensive than chicken breast per their protein content (chicken breast is only twice more expensive than lentils, both having the same protein content). Therefore neither tofu nor protein extracts are a rational choice for a vegan diet. I have made countless experiments in the attempt of composing a vegan diet that would not make me gain weight very rapidly and which would also be no more expensive than a meat-based diet. At the prices from here, I have found only a single solution. I make at home a special kind of bread that is highly enriched in protein, with up to 50% protein. This is made by washing away most of the starch from the dough, enriching the dough in gluten. While it is possible to extract almost pure gluten from wheat flour, the so-called "seitan", this requires more time and more water than I am willing to spend every day. For the protein-enriched bread that I make, about 5 minutes of dough washing are enough. Fungal ovalbumin would be a good alternative for this process, but I doubt that we would see it at a decent price any time soon.