>>4912068It's high in allergens, lectins, protease inhibitors, and phytoestrogen and not that great as far as bioavailability goes, even rice ranks higher as a better source of plant protein. Fermentation can make it slightly more bioavailable, but I'm not entirely sure of the amount of gain myself.
Pretty ingenious, whoever decided to make it a food source to make money. Onions, and other legumes, are typically used in agriculture as a cover crop for soil building between seasons and then threshed into the ground, so it's extremely plentiful wherever monoculture farming is done.
As for why it's so popular, I don't rightly know. Eggs, whey, and bird meat are cheap and easy to get sources of protein that rank the highest in bioavailability and usability by the body, but recent trends pushed by celebs and social media and (veganism, animal rights, poorly informed "sustainability science") are likely to blame for the prominence of plant-based protein sources in the last handful of years.
>TL;DROnions is inferior to eggs, whey, white meat and red meat (in that order), and the only thing it has going for it are ok micronutrients; which can be gotten from far better supplementary sources like hemp seed and cyanobacteria (like spirulina)
Get your animal proteins pasture-raised and organic if you can, the absence of added hormones and better quality of life, without question, translates to better products that are better for you.
