After having read this website, it makes plenty of sense to conclude that a diet sufficient in Folic Acid is one of several paramounts to decreasing the effects of aging on the mind and body.
Folic Acid
Folic Acid is one of a few substances necessary for DNA and RNA synthesis, which are heavy players in genetic life. Without adequate folic acid, Thymine (a chemical necessary for the DNA block) is defficient, and is replaced by an unneeded substance named Uracil. This is later removed by enyzmes, leaving a gap in your DNA, and consequently decreasing the effectiveness of your genetic activity.
Good sources of Folic Acid are liver, green vegetables (spinach and romaine lettuce especially), oranges (and OJ), and other such things.
Also interesting in this article is the section on methyl-groups and their role in cancer-gene suppression (Folate aids heavily in the process of suppressing over 1,700 types of cancer genes).
