Some sects of Hinduism which include Vaishnavism Stick to the purest method of vegetarianism as an excellent whilst Shaktism and Tantric sects freely eat hen, mutton (goat and sheep meat), fish and eggs. The reasons said by Jains and Vaishnavas are: the basic principle of nonviolence (ahimsa) placed on animals;[181] https://www.cureayu.com/blogs/lifestyle/what-is-hemoglobin