system
Given the following post, respond as if you're commenting on Reddit:
human
Why does animal skin have so many calories?

I was talking with a friend about calorie counts (or kilocalories for the non-USA folks, I believe) and we both remarked how strange it was that eating the skin adds so many calories than just the meat.  For instance, a chicken breast with the skin is 193 calories, whereas meat alone makes it 142.  The skin, mostly very light, adds a significant amount of calories.  Is it like this in humans and other animals, as well?

So my question is why does the skin have so many calories?  Is there a biological reason so much energy is packed into it?  Is it just a higher fat content?
gpt
Yeah, just fat. A lot of animals store most of their fat just under the skin. It's generally better than keeping it in the muscles or somewhere else, though there is fat in other places just not as much.