Oregano is rich in antioxidants, which are compounds that help fight damage from harmful free radicals in the body. The buildup of free radicals has been linked to chronic diseases like cancer and heart disease. Oregano contains certain compounds that have potent antibacterial properties. Oregano is high in antioxidants. These compounds can not only neutralize free radical damage, but they may also aid in cancer prevention. In addition to fighting off bacteria, some test-tube studies have found that oregano and its components may also protect against some viruses. In particular, carvacrol and thymol are two compounds in oregano that have been associated with antiviral properties. Inflammation is a normal immune response that occurs as a result of illness or injury. However, chronic inflammation is believed to contribute to the development of diseases like heart disease, diabetes and autoimmune conditions. Oregano is rich in antioxidants, which can help neutralize free radicals and reduce inflammation. Oregano is an herb that boasts some pretty potent benefits when it comes to your health. It is high in antioxidants and may help fight off bacteria and viruses, potentially reduce the growth of cancer cells and help alleviate inflammation.