When you compare a female on a low carb diet and a female on a low fat diet, the difference in their faces, is unbelievable. My next door neighbor has always been on a low fat diet. She is just in her 40's and I am almost 55. She looks like a skelton in the face and my face eventhough older, looks healthier. Sorry but I noticed the extreme difference when Suzanne Sommers was on a show a few years ago and they were comparing her with a famous woman athlete on a low fat diet. The difference in their faces was obvious.