6 foods that make you look older

There's a reason why your skin feels a little off after a series of holiday parties, BBQs, or mojito-filled beach days: "What you eat affects your skin—for better or worse," said Dr. Ariel Ostad, fellow of the American Academy of Dermatology. While a few indulgences won't age you overnight, a continuously poor diet can accelerate the aging process of your skin (and teeth) over time. Here, 6 foods to consume in moderation in order to look as young as you feel.

Sweets

Sugar overload may kick-start a process called glycation. The theory: When you eat more sugar than your cells can process, the excess sugar molecules combine with proteins, creating "advanced glycation end products" (appropriately referred to as "AGES"), explained Ostad. Ultimately, AGES may damage your skin's collagen (the protein that keeps skin firm and youthful).

Unsurprisingly, too much sweet stuff is also bad for your smile.

"Sugar sticks to your teeth, encouraging bacteria, decay, and discoloration," said Brian Kantor, a cosmetic dentist who practices in New York City. If you treat yourself to something sweet, swish water around your mouth afterward to remove any buildup.

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