Frugal

Great post!

I wanted to add that this isn't quite how proteins work. Those protein-rich legumes aren't what you would call 'complete proteins.' There's a number of amino acids our bodies use as proteins and while legumes are a good source of many of them, there's a couple proteins you won't get enough of from just the beans. Fortunately, brown rice- while not as rich in protein- gives you the proteins that the beans are lacking. That's why beans and rice are a match made in heaven.

Herbivorous animals are just better at metabolising proteins from plants and of course they're capable of eating much more than us. That's why they're able to live off of grass.

This just stuff I read up on a few years ago so if I've gotten something wrong please say so