That is amazing! May I ask what is an anti-cancer diet?
It's a lot of things I wouldn't eat LOL! But, there are many such diets. They are mostly vegetarian, no processed foods, and no processed sugars. Low or no breads. Any breads must be whole grain. But, as a marathon runner, he has found that he has to have at least some animal protein. Plant protein alone wasn't enough.
He's not a cancer survivor. He's a cancer beater. He didn't sit around hoping for the best, he actively went after it. It's a belief by cancer beaters like himself that cancers thrive on sugar and bad fats. He seems to be living proof.