At least, we should not take too much per meal - http://cn.wsj.com/big5/20140326/hea115138.asp

Get the Protein You Need - https://www.webmd.com/diet/healthy-eating-20/slideshow-how-to-get-protein

The plant protein that could push meat off your plate - https://www.washingtonpost.com/climate-environment/2023/06/27/new-plant-based-meat-developing-rubisco-duckweed/