i got this info from holisticonline.com there is more info on the site but here is some stuff
Dandelion (Taraxacum officinale)
Dandelion may flush out the kidneys, boost metabolism, and off- set a craving for sweets. Eat the leaves raw in a salad or make a tea by boiling 2 to 3 tsp of the root in a cup of water for I 0 to 15 minutes. Drink three times a day.
Green Tea (Camellia sinensis)
Green tea enhances the ability of the body to burn fat. Choose a standardized extract containing 50 percent catechin and 90 percent total polyphenols and take 300 milligrams thirty minutes before breakfast and another thirty minutes before lunch. Do not take more.
all so try www.ehow.com
they say cinnamon, cayenne peper and more can help