“In addition to preventing many chronic diseases … comprehensive lifestyle changes can often reverse the progression of these illnesses. … Changing lifestyle actually changes your genes—turning on genes that keep you healthy, and turning off genes that promote heart disease, prostate cancer, breast cancer, and diabetes—more than five hundred genes in only three months. People often say, “Oh, it's all in my genes. There's not much I can do about it.” But there is. Knowing that changing lifestyle changes our genes is often very motivating—not to blame, but to empower. … [Our approach is] not like there was one set of dietary recommendations for reversing heart disease, a different one for reversing diabetes, and yet another for changing your genes or lengthening your telomeres. In all of our studies, people were asked to consume a whole-foods, plant-based diet … It's as though your body knows how to personalize the medicine it needs if you give it the right raw materials in your diet and lifestyle. … And what's good for you is good for our planet. To the degree we transition toward a whole-foods, plant-based diet, it not only makes a difference in our own lives; it also makes a difference in the lives of many others across the globe.”

Introduction https://books.google.it/books?id=KfeoBAAAQBAJ&pg=PP12 to Marco Borges, The 22-Day Revolution (New York: Penguin, 2015).