What are the constituent elements that make up a bowel movement and why is our body unable to use so much of the food that we put into it?

Question

Seems like a fairly inefficient system tbqh – is it because we’re eating the wrong stuff? or is it because living organisms create a fixed amount of waste no matter what? Poop is weird. I’d like to understand it better.

In: Biology

Answer 1

I’m not clear on the inefficiency premise of the question

How efficient is the human digestive system?
byu/Its_raining_bacon inaskscience