In total , 199 men , average age 74 years , with localised prostate cancer , 60 % managed with primary active surveillance ( AS ) or 40 % with watchful waiting ( WW ) following previous interventions , were randomised ( 2:1 ) to receive an oral capsule containing a blend of pomegranate , green tea , broccoli and turmeric , or an identical placebo for 6 months .