A new study published in the American Journal of Clinical Nutrition shows that cells of people who take multivitamins may be biologically younger than those of non-users. Read more about cell aging and supplements.

So I admit it: I've just started reading The Omnivore's Dilemma. (Better late than never, right?) Even if you're familiar with the basic concepts -- food miles, humans=walking corn chips, etc. -- Pollan's manifesto is well worth the read. And...