A few years ago the Prostate Cancer Foundation put out a Health & Wellness Guide created by several co-authors from UCSF and Harvard which mentions several things about
foods and supplements. I've seen other things elsewhere that are in general agreement, for the most part.https://www.pcf.org/wp-content/uploads/2016/10/pcf_hw_guide.pdf
(My personal challenging aspects are with food portion control and stress eating with Stage IV disease, and with getting enough exercise while feeling the fatigue that has come with 5 1/2 years on Lupron and especially 2 1/2 years of added Xtandi.)
Dx Nov 2013 Metastatic Prostate Cancer at Age 65
Numerous Bone Mets and Lymph Nodes, PSA 5,006
ADT Lupron + Zometa, PSA Nadir 1.0
Resistance after two years.
Short rechallenge Casodex.
Oct 2016 Provenge
Dec 2016 Start Xtandi, PSA 95.0
Sep 2017 Xtandi PSA Nadir 1.2
May 2019 PSA 3.2