Research is showing that aronia berries can protect the body against certain cancers — particularly breast cancer and colon cancer. These test tube and animal studies showed that the anthocyanins present in the berries might stop colon cancer cells from growing, reducing growth by up to 60 percent in one study.

Berry extracts, when taken by women suffering from breast cancer, have been shown to reduce free radicals in their blood, which in turn reduces oxidative stress on the body.