5 Foods That Will Make You Look Younger

This post originally appeared on Details.com.

Kicking nicotine and avoiding excessive sunlight will help, but the secret to healthy-looking skin is the food you eat.

"The wrong choices cause inflammation down to the cellular level," says dermatologist Nicholas Perricone, the author of Forever Young, a book about how eating right can keep you looking younger than your years.

"And while you can't see it, that inflammation leads directly to wrinkling, sagging, and premature aging."

Here is what to eat to prevent that from happening.

See what to eat to look younger »

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Sweet Potatoes

Beta-carotene, which makes these tubers orange, balances your skin's pH, helps combat dryness, and promotes cell turnover, all resulting in smoother skin.

Wild Salmon

The pigment that makes the fish pink, astaxanthin, is a powerful foe of free radicals, rogue molecules that damage cell membranes and DNA and cause skin to age. A study found that eating one serving every five days can prevent actinic keratoses—ugly rough patches that are precancerous.

Tomatoes

The fruit's red pigment, lycopene, is a potent antioxidant that shields skin from sun damage—like sunscreen, but from the inside out. To best absorb lycopene, eat tomatoes with olive oil.