Some sects of Hinduism for instance Vaishnavism Stick to the purest kind of vegetarianism as a perfect even though Shaktism and Tantric sects freely consume rooster, mutton (goat and sheep meat), fish and eggs. The explanations said by Jains and Vaishnavas are: the theory of nonviolence (ahimsa) applied to animals;[181] https://www.cureayu.com/blogs/lifestyle/can-we-build-muscle-without-protein