The friend was always thin her entire life. She'd cry at the breakfast table because her mom didn't want to send her to school on an empty stomach, but she just wasn't hungry at breakfast time. (Her mom eventually relented and allowed her to skip breakfast)

She claimed that she could gain weight very quickly - apparently she regularly went on 2-week crash diets pretty regularly when she was a young woman, because she'd gain 2 or 3 lbs. Only those 2-3 lbs would come off in about 3 days, so she'd stop the diet at that point. And when she told me about what was on the crash diet, I realized it called for more calories than she'd normally eat. My guess about what was really going on is that since she did this fairly regularly when she was a young woman, those 3 lbs were pre-menstrual fluid retention that would have come off in 2-3 days anyway.

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I have never been thin in my life. Well, my mom claims that I was very thin when I was very ill for several weeks after having my tonsils removed, but that was only relatively thin for ME. The picture she refers to as me being so thin - I actually looked closer to a normal weight than my usual pudgy self, but I was still decidedly not underweight.

As long as I keep carbs extremely low, I do have a LOT more control over how often I get hungry, and hate to force myself to eat on a schedule. I can still eat on a schedule, I just don't like to eat when I'm not actually hungry. So I get the thing of not eating when you're not hungry, and not being interested in food when you're not hungry.

But that's actually not any different from when I ate constantly. I only ate constantly when I was eating mostly carbs because I was hungry all the time, and therefore wanted to eat all the time.

I go 6-8 hours without eating now because with so few carbs, it takes me that long to get hungry again after eating.