Citrus Aurantium, a fruit commonly known as bitter orange, has been used in traditional China to help support chest congestion and indigestion, help stimulate gastrointestinal function and improve circulation and liver function. In traditional western health, Citrus Aurantium can be used to help support digestive and circulatory problems. - Citrus Aurantium can be used for stimulating the breakdown of fat, by causing the release of noradrenaline (a stress hormone) at beta-3 receptor sites creating chemical reactions that increase fat breakdown. Beta-3 receptors in the body increase the rate at which fat is released from the body stores (lipolysis) and increase resting metabolic rate (thermogenesis). Physical activity can increase this thermogenic effect and further enhance the thermogenic effect of Citrus Aurantium towards healthy weight loss.