Here is an interesting article on the science behind how low card diets help you lose weight, and the effect of low-carb diets on your body in both the short and long-term. http://www.everydayhealth.com/publicsite/index.aspx?puid=06a464ec-5cdd-4235-80c6-ef1263dd5685&p=4&xid=nl_EverydayHealthHealthyLiving_20080408