I always thought that most of the food comes out again after nutrients are absorbed.
For example, here is a can of noodles. It says the 800gr in the can have a total of something like 600kcal. If the entire can would be converted into fat, this would have to be about 5500 kcal. That would mean that about 90% of it comes out again.
But sometimes I eat and eat and eat and a lot less is coming out then went in.
So, how much food is actually coming out again after being processed in the body?
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