"Research suggests that their high concentrations of omega-3 fatty acids can hydrate the skin and lessen the appearance of deep wrinkles," says nutritionist Dawn Jackson Blatner, who recommends eating 12 ounces of fish (such as salmon or cod) every week, or 1 ounce of walnuts a day. You should notice a change in your skin in about six weeks.
If you wish your complexion looked a little fresher, or your skin felt a bit firmer, you have more options than ever - from makeup and creams to needles and lasers to scalpals and sutures. How far should you go? Your face, your call.
Our December issue features Oprah's Favorite Things—as well as your chance to win them all! You'll also find our easy holiday declutter plan, Dr. Oz's guide to sleeping better (starting tonight) and the ultimate holiday menu.