Inflammation can be described as a the reaction of the body to some type of injury or injurious agent. Inflammation may also be a type of nonspecific immune response. If the body cannot restore a healthy equilibrium or provide an appropriate response in a short period of time, it may keep trying for years. This long term effort of the body to repair itself is called chronic inflammation and is believed to be at the origin of many diseases including cardiovascular diseases, diabetes or even cancer. Recent studies indicate that some citrus phytochemicals may be able to reduce or positively influence the inflammation process. Other studies suggest that some citrus compounds, particularly vitamin C or polyphenols, could have a beneficial effect on the immune process.