I agree with the preservative intake, and would take that point further...Lubrication.
Muscles need lubrication to move efficiently, therefore a diet rich in preservatives and Greasy foods is ideal. For example, if a person eats 2 sausage egg mcmuffins, and several hashbrown cakes, all greasy, and then complements this meal with the two for one apple (or cherry pies) all the requirements are met, for breakfast anyway. If this is carried through the day (I use McDonalds as an example only) a person could theoretically live forever.
sean