According to this article , by doctors from MD Anderson and others , gut microbiota ( the microbes in your intestine that help digest the food ) play an important role on your immune response to cancer.
Basically it saying we don’t have the right microbes or “ the overall diversity of the microbes in our guts“
They run experiment with mouse, and they were successful to prove this theory . Please read the article carefully.
I don't about you guys , here is a quick test I am going to try , I will start taking probiotics supplements.