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Put Down the Popcorn
If you want to wake up with a flat tummy, close the kitchen two hours before hitting the sack. Absolutely craving a late-night snack? Avoid anything salty. "Cut up a grapefruit and grate some fresh ginger over it," recommends registered dietitian Lauren Slayton. Grapefruit is hydrating, and ginger is an anti-inflammatory that has the added benefit of calming skin.