Can diet and exercise slow prostate Cancer's return after surgery?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Age \>=18 years 2. Diagnosed with non-metastatic prostate cancer and choose radical prostatectomy (RP) as primary treatment. 3. Able to speak and read English 4. Regular access to the Internet (via a computer, tablet, or phone) and text messaging capabilities on the phone 5. Ability to understand a written informed consent document, and the willingness to sign it Exclusion Criteria: 1. Cannot have neoadjuvant radiation or hormone therapy planned at time of enrollment (if enrolling \>4 weeks prior to RP). 2. Men who have contraindications to exercise based the American College of Sports Medicine 2016 Exercise pre-participation screening criteria (https://www.ncbi.nlm.nih.gov/pubmed/26473759), and who do not receive a physician clearance to participate in the moderate to vigorous intensity physical activity with one or more of the following self-reported conditions: 1. Heart attack 2. Heart surgery, cardiac catheterization, or coronary angioplasty 3. Pacemaker/implantable cardiac defibrillator/rhythm disturbance 4. Heart valve disease 5. Heart failure 6. Heart transplantation 7. Congenital heart disease 8. Diabetes 9. Kidney (renal) disease 10. Chest discomfort with exertion 11. Unreasonable breathlessness 12. Dizziness, fainting, or blackouts 13. Ankle swelling 14. Unpleasant awareness of forceful, rapid or irregular heart rate 15. Burning or cramping sensations in your lower legs when walking short distance 3. Men already meeting aerobic AND resistance exercise recommendations. To be eligible, must not meet at least one of the following: (1) 150 minutes per week of planned moderate aerobic exercise or 75 minutes per week of planned vigorous aerobic exercise or combination;(2) Two or more days per week of resistance exercise; (3) Eight or more resistance exercises per session 4. Men who are already meeting all of the 7 prostate-specific dietary recommendations