Echinacea – a group of herbaceous flowering plants in the daisy family, marketed as a herbal supplement that can help combat cancer. According to Cancer Research UK, "there is no scientific evidence to show that echinacea can help treat, prevent or cure cancer in any way."[66] Ellagic acid – a natural phenol found in some foods, especially berries, and which has been marketed as having the ability to prevent and treat a number of human maladies, including cancer.