Why do you recommend for cancer prevention? wheatgrass? beet juice? assuming all other medical risk factors are optimized.

Cancer Prevention: A healthy life style improves your chances of staying cancer free. This means consuming, healthy diet (Plant- based /Veges, fruits/ grains and lentils with limited amount of Fat and low on meats. Once you control your diet, next step is to exercise daily(30-45 minutes of walking is one option) and keep your weight in the healthy range. Avoid tobacco and alcohol as much as possible.