"If I could deliver one message to the researchers who are looking for the cause of diabetes, and the cause of clogged arteries, and the cause of high blood pressure, and the cause of obesity, I would tell them the answer is in three words. It's the food! … If people adopted a plant-based diet, the changes we would see in our individual health, in our national health situation and in this physical, environmental world we live in, would be so profound."