Originally Posted by voltman
There are plenty of vegetable protein sources available.
Also, they stated from the outset that it would be a vegan ride, didn't they?
There are actually very few sources of lysine in vegtable protein. Just eating 'protein' is not sufficient, or we could just eat eggs for protein.
Vegetarian diets need a lot of soy protein for this reason. But soy extracts contain a lot of phytoestragens and other hormone mimicry compounds whose impact is not understood yet.
While Soy products are being pushed heavily, this is because of large agricorps using this cheap food source for their processed products and the new 'nutriceutical' industry that has a lot of scammers in it right now.