I received a wake-up call today: I can apply all the stellar anti-aging creams I want, but unless I change my diet (read: put down the martini glass and step away from the cupcakes), my wrinkles are going to stay put.

The good news: it's actually not that hard to switch up the foods you eat to get better skin, and the results show up in about four weeks -- that's a heck of a lot faster than some of those serums. Plus, chocolate is one of the foods you should start (OK, keep) eating!

Could your skin, and your diet, use a boost too? Take this quiz to find out and get tips from a top nutritionist.

Need some quick fixes while you wait for the new diet to kick in? Get 'em here.

Think you know how to keep your skin looking young? Prove it by taking this quiz.

Do all celebrities have perfect skin? Uh, no, and these stars are proof.

Keep up with the latest in beauty -- follow us on Twitter and friend us on Facebook.