There might be some application in pre cancer, as we’re told cancer cells are formed in our body all the time, and perhaps, fasting, and being lean cleans you, but to fast when you have cancer is absurd, the cancer devours you.
Could lowering sugar consumption while fighting cancer be effective?
Purely anecdotal, but I have two friends that are cancer survivors and spoke about the correlation between sugar and cancer. Both have become leaner people that ditched sugary products and the simple carb life.