What can i do if my dad has prostate cancer is there any tips i can't give him about being healthy?

Yes: Some good general advice is to follow a very low animal fat diet and exercise. Both of these interventions have been shown to be associated with lower risk of cancer recurrence in some situations. There is unlikely any downside to such interventions and likely cardiovascular benefits which should not be overlooked, as it is in fact the leading cause of death of men on active surveillance for cap.