The most well known vitamin that the body can’t produce and can only be gotten from animal foods, is Vitamin B12.
Vitamin B12 is a water-soluble vitamin that is involved in the function of every cell in the body. It is tightly involved in the formation of blood and the function of the brain.
Deficiency usually results in anemia, impaired brain function, symptoms of mental disorders and a smaller brain. ?
oh pls... vitamin B12 is not from animals.. it is made from bacteria in the soil. Animals in the farm always infested with such filth that they absorb in B12.
Nowadays, plants are too clean and not being pluck from the ground and eat it. that is why the B12 isn't in them.
and you just need micro level of it and it can be stored in the liver for 7 years.
anyway, many vegan take supplement of B12 or eat plant food which is fortified with B12..no problem.. animals are still safe without compromising their life for food.. Only meat eating losers can't have this level of intelligence and capability to do this.
B12 is no excuse for eating meat... human with brains will know how to make life easy for all sentient beings. unlike fucktard meat eating losers.