Researchers now understand why taking an investigational white button mushroom supplement shows promise in slowing and even preventing prostate cancer from spreading among men who joined a phase 2 clinical trial studying "food as medicine." Looking at preclinical and preliminary human data, the scientists found that taking white button mushroom pills reduces a class of immune cells called myeloid-derived suppressor cells (MDSCs), which has been linked to cancer development and spread. "City of Hope researchers are investigating foods like white button mushroom, grape seed extract, pomegranate, blueberries and ripe purple berries called Jamun for their potential medicinal properties. We're finding...