Some Sects of Hinduism like Vaishnavism Keep to the purest kind of vegetarianism as a great even though Shaktism and Tantric sects freely take in hen, mutton (goat and sheep meat), fish and eggs. The reasons said by Jains and Vaishnavas are: the theory of nonviolence (ahimsa) applied to animals;[181] https://www.cureayu.com/blogs/immunity-wellness/food-for-immune-system