I've heard that certain foods and nutrition supplements can protect your health. Can't I just eat more of these, rather than cutting out meat?

While fruits and vegetables have many health-protective qualities, there is no single 'miracle food' or supplement that can prevent illness or death from diseases that have complex and long-term causes. Eating a whole-foods vegetarian diet and adopting health-promoting lifestyle changes such as regular exercise, sufficient sleep, and stress reduction, are a more comprehensive and effective way to promote health.