Is this really true and known empirically? Could the body be better at accessing calories in some foods and not others?
Thought experiment: suppose I wrapped a small chocolate bar into airtight plastic, then I swallowed it. I have just swallowed 200 calories, but my body will access/process/burn 0% of it since it can't break down the plastic.
At least in this one (unrealistic) example, CICO is false.
Is this really true and known empirically? Could the body be better at accessing calories in some foods and not others?
Thought experiment: suppose I wrapped a small chocolate bar into airtight plastic, then I swallowed it. I have just swallowed 200 calories, but my body will access/process/burn 0% of it since it can't break down the plastic.
At least in this one (unrealistic) example, CICO is false.