I don't know. I've been doing nothing but salads for dinner the last couple of weeks and I've been doing OK.
I'm not using salads as a replacement for exercise, or a means of weight loss, but rather a supplement to eating better. This way I can get some vegetables into my diet. Eat a little healthier, you know?
Although that I'm not eating so much red meat, my body's rebelling and craving protein. I've been wanting to eat just tons of meat. I've been resisting pretty well so far.
I actually have a little way worked out to satisfy that craving. I eat salads for dinner Monday through Thursday, and Friday I go out with my friends and allow myself something slightly more indulgent. I try not to go overboard. Sometimes I just end up getting a salad with some type of meat on it.
Also during the week, I drink protein shakes (whey) just before I work out. It's been doing pretty well for me. I'm slowly moving from fat-sh** to fat-a**.
http://www.waldoland.com/blog/2008/04/nothing-but-salads-this-week.aspx