Thank you for sharing your personal example, Leah. That certainly wouldn't be prevented or cured with nutrition. I have heard of others ridding themselves of disease (like some forms of cancer with diet changes, since cancer needs sugar to survive and thrive and sugars in the form of actual sugar and carbs that turn into sugars can be eliminated). But I agree with you that foods will never be a cure-all. Does anyone have any other examples?

I think this could never be 100% true, as genetic mutations cannot be avoided and will continue to require medications that offer higher doses of needed elements in the body. For instance, I have pernicious anemia, which, in my case, is genetic. I don't process b12 through my stomach like most people do, so I need a shot. There's no way to "good nutrition" my way out of having it or handing it down to my kids.