Metabolism boosters? If that's what you meant, there are dozens of products offered as miracle boosters to increase energy & reduce fat, but they may work only temporarily & at risk of dangerous side effects. Best boosters are exercise, healthful diet, & water. See following site for more on the topic: http://www.Metabolism-boosting-foods.Com/index.Php.
Good Q. I am not sure, but I am glad to share this with our medical experts. Thanks for asking.