To contact NAH click here. But I eat a largely plant-based diet. The evidence is so strong and overwhelming and produced over such a long period of time that it's no longer debatable. It typically refers to people who never eat meat, fish, or poultry for ethical, religious, or health reasons.
Vegans also avoid all dairy products and eggs.
That includes cancers of the lung, colon, stomach, mouth, larynx, esophagus, and bladder. It's not clear how fruits and vegetables may cut cancer risk. There is also evidence that high-fiber grains like wheat bran can cut cancer risk. That's just one study. How red meat may promote tumors is still a question.