Guerita, do you have high bloodsugar? If so, you are probably at least insulin resistant and following a low-fat diet would eventually cause you to gain weight, as well as cause other debilitating conditions like your IBS.

On a low-carb diet, you don't worry about fat. Since your body composition is normal, you don't need to eat more fat to convince your body to burn it, so much as you need to eat adequate fat for your body to function correctly and build/maintain your cells.

Do not try to lower fat to maintain or lose weight. That's the whole point of lowering carbohydrate. That is what makes you fat and raises your bloodsugar. Fat DOES NOT make you fat.

As far as calories, before you say you are eating a lot more calories, check it out. I thought I was eating more calories because I eat loads of fat, but I am actually eating fewer than when I was carbing out all the time. A lot of people like Fitday.com to calculate their caloric intake.

HTH,
;-Deb