Diet won't cure cancer, but a healthy diet makes you stronger, and a stronger body can both fight cancer better itself and tolerate stronger treatments to help it in the fight.

When my dad was diagnosed with stage 4 colon cancer at age 69, he as a life-long smoker and regular drinker (several drinks every evening), despite his type 2 diabetes. He wasn't strong enough to tolerate any treatment, or even to work with the PT and OT to get stronger and move around, so he just stayed in a hospital bed for a year until he passed away. My kids were in their teens then, and I promised them I'd never do that — if I weren't prevented by dementia and could move even one arm, I'd be doing laps around the hospital floor. I never imagined it would only 9 years until I had to keep that promise, and it took me six weeks post-surgery before I was able sit up and move a wheelchair for a few yards (they had to sling me into it with a hoist), but then I did it, and haven't stopped moving since.

But at the same time, *because* I went in strong and healthy, I willingly took and was able to tolerate every assistance that medical science offered me: In my time of need, I decided to cash in some of the chips I'd earned from a healthy lifestyle, and so far, it's paid off with excellent returns.

There's no contradiction between a healthy lifestyle and medicine: cancer treatments work better and have fewer side-effects if you have a healthy lifestyle, and a healthy lifestyle can last many years longer with the help of cancer treatments. Why not choose both?