eli5 why does manure make good fertiliser if excrement is meant to be the bad parts and chemicals that the body cant use

Question

eli5 why does manure make good fertiliser if excrement is meant to be the bad parts and chemicals that the body cant use

In: 7183

Answer 1

This is one of the beauties of how we’ve all evolved. Plants eat things animals don’t need and produce things animals do need, and vice versa. (Highly simplified, but more or less)