As I began to move away from a meatheavy diet to a plantbased menu, it felt as if the doors to truly delicious foods were finally opening up. - Neal D. Barnard

When people are eating meat, I think of it as a bit like smoking. It’s sort of Russian roulette. You may not get diabetes, but your chances of getting diabetes, about 1 in 3. You may not get cancer, but, your chances, if you’re a man, about 1 in 2. A woman, 1 in 3. Your chances of gaining weight, 2 out of 3. It’s not all diet, but, most of it is. The best thing that you can do to make sure that you empty all those bullets out of the chamber and not taking a risk with your health is to get the animal products out of your diet and eat healthy foods.

By setting aside animal-derived products—meat, dairy products, and eggs—you can reach a level of health and well-being that you may never have expected you could enjoy. … Although our work has focused on helping people trim down, conquer diabetes, cut cholesterol, and tackle other medical problems, it should be said that not everyone who decides to forgo animal products makes that choice for health reasons. Many people are concerned with how animals are treated by the food industries, and rightly so. And the environmental consequences of meat and dairy production should be of concern to all of us.

I think of genes in two ways. There are dictator genes. Those genes give orders—blue eyes or brown hair—and you don't have any choice. The genes for diabetes, heart disease, or certain forms of cancer, they're more like committees giving suggestions. But you've got a lot of control over whether those genes ever express themselves. The vista on diet-related disease is spreading out in a bigger way than we ever imagined. We thought maybe diet affected heart disease and a few cancers. Then there was diabetes. Now it's also brain disease—not only stroke but also Alzheimer's. We thought that was entirely due to genes and age. Now we know it's due, to a very substantial degree, to diet. We've got control. Not perfect control, but certainly control we never had before.