Some women are just naturally very lean....I am 5' 7" and 116 lbs. And that is the highest weight I have ever managed except when I was pregnant, 155 at 9 months pregnant). I do not know my bodyfat % for certain, the very unrealiable online calculator puts me at 12% but I would guesstimate Im at around 15%. I do not nor have I ever had an eating disorder, I have never ever counted calories, I am more aware of what I put in my mouth now than ever, trying to gain. I am very active, I walk, sprint, do yoga and body weight exercises, but not excessively, I give my body plenty of recovery time. I have been this way my whole life, I did have problems getting pregenant and bigger problems staying pregnant and I would guess my leaness probably contributed to that, but I did manage to have two healthy children. People don't realize that being naturally lean has its problems as well, people have always assumed I had an eating disorder, I've had strangers stop me on the street and ask me how much I weigh. It is not fun being called skinny all the time, and sometimes other women just assume Im a bitch because Im thin (the fact that Im also increadibly shy does not help with that)and I would agree that most men find curvier women more attractive. I could never survive on a raw vegan diet, I would whither away. I'm not really sure now what my point was (after all that rambling) except maybe all of us are different, you can never tell a book by its cover.
I treat my body like a temple.....to nourish the Goddess who lives inside