Once we’ve been diagnosed with prostate cancer, which diet and lifestyle changes can really reduce the risk of its progress or recurrence? A lot of us do various things, but what's the evidence say? A metastudy in the World Journal of Urology (2017 35:867-874) surveyed a large number of medical studies of post-diagnosis lifestyle changes and summarized their findings.
What did they find that helps? Regular vigorous physical exercise, not smoking, and maintaining a healthy body weight are strongly supported by the evidence( no surprise there!) Several dietary factors are fairly well supported by the evidence, too: tomato sauce/lycopene, cruciferous vegetables like cabbage or broccoli, fish, coffee (decaf or not), fats from vegetable sources are all good for reducing risk of prostate cancer progression. Some dietary items seem to increase risk—full-fat dairy foods, eggs, animal fats/saturated fats, poultry skin (not the flesh).
It’s worth reading the full article for finer details on what reduces the risk of recurrence and progression.