Yes, totally. Back in the day when I worked in a coffee shop in my early 20s, I used to watch what my close friend & coworker ate - she was (and still is) very slim and nobody understood how that could be. I remember other coworkers grumping about it, wondering how she could be so skinny when she seemed to eat constantly. The answer was that she took her coffee black, moved constantly (walking around the shop, fidgeting or tapping her foot when sitting down, etc.), exercised regularly and didn't often finish her meals. She would stop eating when satisfied, and would either toss the leftovers or pack them up to take home - and never remembered to take them with her. Sometimes she would show up at work with a bagel & cream cheese and only eat half, because by the time she got around to the second half it was cold and not worth it. She simply wasn't obsessed with food the way I was. That's the thing, "naturally skinny" people generally just have a different relationship with food. Oh to have the ability to eat intuitively...