Still perfecting your Thanksgiving dinner menu?

Celebrity trainer Harley Pasternak -- who has whipped stars like Amanda Seyfried and Hilary Duff into shape -- offers his tips to pick seasonal eats for your upcoming holiday meals.

Watch the video above for Pasternak's thoughts on the importance of eating seasonally in the winter months, and for more from the celeb trainer, tune in to his new transformation series, The Revolution, airing this January on ABC.