Quotescientists found that three compounds were notably effective in starving prostate cancer cells and impede their proliferation: the ursolic acid in apple peels, the curcumin in turmeric and the resveratrol in grapes.
https://www.naturalnews.com/2017-10-22-prostate-cancer-eliminated-by-combination-of-powerful-nutrients-in-apple-peels-turmeric-root-and-grape-skins.html
Look for curcumin with piperine to enhance bioavailability.
Science or Snake Oil: can turmeric really shrink tumours, reduce pain and kill bacteria?Quotecurcumin is showing some encouraging effects in reducing markers of inflammation in humans, the majority of the pharmacological effects of curcumin are in lab studies or animal experiments.
https://theconversation.com/science-or-snake-oil-can-turmeric-really-shrink-tumours-reduce-pain-and-kill-bacteria-76010
<added>
But it is within the 'Promising' section on the updated Snake Oil bubble chart
http://www.informationisbeautiful.net/visualizations/snake-oil-scientific-evidence-for-nutritional-supplements-vizsweet/
You don't need scientists to tell you it's good for you, buy some turmeric root, cut it open and have a deep smell of it, your nose tells you it's good for you :)
Lovely colour as well.