@ranger44
Life expectancy is into 80s if you take care of yourself. I am 78 in May. I had prostate cancer at age 76.

I had radiation of 30 rounds of proton at UFHPTI. I did not need hormone treatments because my Decipher test showed low risk.

I agree with another poster that limiting your glucose is questionable. Not sure where you got that information if not from your medical providers I would question that. Your body needs glucose and your organs need it.

The factor that feeds your prostate cancer growth is testostorone. That is where hormone treatments come in. They limit testorone in your system and starves the prostate cancer. It does not kill it but hinders it's ability to grow. This helps with what ever your treatmens will be but comes with some real high impact side affects for most.

Statistically prostate cancer (unless you have the high risk high metassis kind) does not wind up killing you (statistics and what my urologist said at Mayo) as you most likely will die from something else. Statisically almost every man will have prostate cancer if they live long enough. When the do autopsies of those who died from other causes they find they had prostate cancer also.

So the decision to treat or not treat is a personal decision. It should be based on the most information you can get from your medical providers and your own research. And then the best options for treatments knowing the pro and cons of each. An like most of us we suggest second opinions if have any doubt.

I had 30 rounds of radiation and my PSA now is well below 1 which is the goal of my R/Os. I had very mild fatique and the usually increase in urination and need to urinate. Good R/Os will give you guidance to mitigate each of thes like they did me. Other than not being able to ride my bike (SpaceOar) I had no change to my lifestyle or activities.