Diet

According to the National Cancer InstituteTrusted Source, there are laboratory and animal studies that link certain antioxidants to a reduced incidence of free radical damage due to cancer. However, human trials are inconclusive and doctors advise against using these dietary supplements without consulting them first.

Foods high in antioxidants include:

berries, such as blueberries and raspberriesdark, leafy greenspumpkin and carrotsnuts and seeds.