>2.2. Animal agriculture contributes to food securityMany environmental studies that vegans use are heavily flawed because they were made by people who have no clue about agriculture, e.g. by the SDA church[1]. A common mistake is that they use irrational theoretical models that assume we grow crops for animals because most of the plant weight is used as feed, The reality is that 86% of livestock feed is inedible by humans[2]. They consume forage, food-waste[3] and crop residues that could otherwise become an environmental burden. 13% of animal feed consists of potentially edible low-quality grains, which make up a third of global cereal (not total crop) production. All US beef cattle spend the majority of their life on pasture[5] and upcycle protein even when grain-finished (0.6 to 1). Hence, UN FAO considers livestock crucial[6] for food security and does not endorse veganism at all.
>FOOTNOTES[1]
https://home.llu.edu/programs/environmental-sciences-bs[2]
http://www.fao.org/ag/againfo/home/en/news_archive/2017_More_Fuel_for_the_Food_Feed.html[3]
https://i.imgur.com/xXQB0W3.png[4]
http://www.explorebeef.org/raisingbeef.html[5]
http://www.fao.org/3/i8384en/I8384EN.pdf#page=4 