Well, there are health benefits that come from exercise even without weight loss. At the higher obesity levels, metabolic syndrome kicks in, but if you're merely a couple of numbers above your ideal BMI, and you had the choice between dieting and exercising, go for the exercising. A few extra pounds won't hurt, and improving your cardiovascular health is much more important than fitting into size 8 jeans.
That said, I went to a fine arts high school and the ballet dancers, during Nutcracker season, ate lunch three times during the day. When I asked one of them how the hell she managed to fit into size 2 skinny jeans after eating four peanut butter sandwichs, she looked at me blankly and said "I'm dancing four hours a day right now."
Edit: You can tell which models exercise and which ones "cleanse" to stay thin without being toned. Its all in the knees. Models have horrifying knees in general, but those that exercise to stay toned don't make you want to vomit like the cleansers's knees do.
Also, flaps of loose skin. She really needed to hit the gym instead of drinking lemon juice for two weeks.
Edited, Aug 11th 2009 2:27am by catwho