(2013) Treating an Enlarged Prostate With Diet by Dr Greger.
(2002) Prostrate Trouble from Your Food by Dr John McDougall.
(2010) Prostate Trouble: Steps to Improving the Flow by Dr John McDougall. He mentions,
Dr McDougall also says:
(5 mins) Transcript. Dr Greger's summary: "Cranberries and pumpkin seeds are put to the test for benign prostatic hypertrophy."
In this video, Dr Greger mentions that
Further, he mentions that 'saw palmetto' doesn't work but there's research on cranberries, flax seeds and pumpkin seeds. In fact, EMA (European Medical Agency, the European equivalent of FDA in USA) supports pumpkin seeds for mild to moderate BPH: see this report (PDF).
(3 mins) Transcript. Excerpt:
(3 mins) Transcript. This video summarizes factors believed to prevent or promote BPH, based on observational studies.
A 16-min presentation summarizing the low incidence of BPH observed among the Tsimane of Bolivia.
Paper: See Challenging the Inevitability of Prostate Enlargement: Low Levels of Benign Prostatic Hyperplasia Among Tsimane Forager-Horticulturalists by Benjamin C Trumble, Jonathan Stieglitz, Daniel Eid Rodriguez, Edhitt Cortez Linares, Hillard S Kaplan, Michael D Gurven, published in J Gerontol A Biol Sci Med Sci. 2015 Oct;70(10):1262-8.
News report: (2015) More Isn't Always Better — "Study by UCSB anthropologists connects increased diabetes risk and higher levels of testosterone to prostate enlargement".
The Tsimane of Bolivia have low incidence of heart disease too.