While there's no denying that nutrition is an important determinant of overall health, I think "can be used as a form of cure for nearly every disease" is going

While there's no denying that nutrition is an important determinant of overall health, I think "can be used as a form of cure for nearly every disease" is going a little overboard. The vast majority of diseases of all kinds cannot be cured by diet alone. Eating an apple a day, for example, is not going to kill HIV.