Boysenberries have relatively high antioxidant content. Boysenberries have been shown to have neuroprotective properties and to prevent liver injury. Boysenberries are a significant source of anthocyanins such as cyanidin-3-glucoside, in addition to ellagic acid and dietary fiber, all of which have been shown to have chemopreventive effects. Boysenberries are also a source of salicylic acid.
The evidence that boysenberries could be beneficial in fighting breast cancer is derived mainly from studies of related berries. Boysenberries are a hybrid of blackberry and raspberry. The fact that boysenberries contain substances that have been shown to be antiproliferative and antioxidant is well established. However, few studies have been performed that directly address the effect of consuming boysenberries on cancer.
Breast cancer-related effects of eating boysenberries
Boysenberries contain ellagic acid, which has been shown to inhibit cancer formation. Boysenberries are also known to have high levels of anthocyanins, including cyanidin-3-glucoside, which has been shown to possess both chemopreventive and chemotherapeutic activity and to enhance the treatment effects of Herceptin.
Loganberries are a hybrid cross between between a blackberry and a raspberry.
Note that while we are continually searching for new evidence concerning this food, there is not much interest in it among cancer researchers so few recent studies are available.