>>1272082 it doesn't matter that 90% is lost if it wasn't food usable to humans anyways. we don't eat grass, fish guts, potato peels, husks, brewing malt, or old food. cows or pigs can eat those and turn them into calories usable to humans that they actually would want to eat. we get the corn cob they get the rest and and those not fit for sale.also the 90% is a fake retarded vegan meme anyways. most food are absorbed in far greater numbers stuff like fats almost entirely. metabolic loss is around 10-15%
plants suffer from this far far more than animal products. you see peanuts and beans in you pop but no bits of steak, fat, fish, eggs. with cooked food it gets even more efficient.
ofcourse feeding animals prime human food and then eating them is waste full. but 99% of farmers don't do that's. in poor countries animals forage and get scraps in rich countries they get industrial byproducts or silage. no pig is getting fresh good onions every day lol, at best they get the food from inferior field regenerating crops like Beta vulgaris or pumpkins after seed extraction.
sure you don't get 90g of beacon after feeding a pig 100g of bacon but so its a false equivalency anyways