An interesting article from The Atlantic. Here’s part:
As any attentive observer of nature knows, life feeds on life. Every living thing, from mammals, birds, and fish to plants, fungi, and bacteria, eats other living things. Humans are part of the food web; but for the artifices of cremation and tightly sealed caskets, all of us would eventually be recycled into other life forms. It is natural for people, like other omnivores, to participate in this web by eating animals. And it is ethically defensible — provided we refrain from causing gratuitous suffering.