Nobody wants to detox in the middle of January. Cleansing your system through fasting or guzzling fruit juice doesn't sound all that appealing when it's near freezing and all you want is a hot meal. Ann Louise Gittleman understands this and has created a fat-flushing program that includes a specific diet for each season as well as a "5-Day Hot Metabolism Booster." Her book provides instructions on how to detoxify the liver and lymphatic system to shed fat and cellulite and explains how to best take advantage of your body's natural response to the seasons. Day 3 of the "Winter Fat Flush," for example, calls for a burger and a baked potato. Detox doesn't sound so bad all of a sudden.