Overweight men who had prostatectomies, saw their PSA rise, and then were put on hormone therapy (aka ADT) were three times more likely to see their cancer spread. Obese men had five times the risk.
"Obesity May Raise Risk of Prostate Cancer Spread"
Several months ago I was overweight, and on my way to becoming obese, but I've shed 40 lbs. with Weight Watchers and now have a normal BMI. My blood pressure and cholesterol have improved as well. And if my cancer comes back, it sure looks like it would be better to have a healthy weight.
My weight since joining Weight Watchers.
My blood pressure and heart rate trend over time as a result of losing weight and exercising.