It's holiday party season and chances are you've been drinking that second (or third) glass of wine on the regular, indulging in treats (as you should be), and skipping the gym in favor of some quality bonding time with friends. And hey, there's nothing wrong with that. But if you're feeling sluggish and start feeling a little snug in your go-to LBD, these are the easiest diet plans to help you get back on track - no counting calories required. And FYI, they're going to be huge in 2019.

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[Photo via @lexiwood]