Pumping Up and Slimming Down with Lifetime's Diet Tribe

It's that time of year of again: The holidays are over, but all those holiday cookies have taken their toll. Lifetime is embracing that post-holiday season rut with Diet Tribe , a new lifestyle reality show that promises to offer inspiration to even the workout-averse. The new series, premiering Monday at 10 pm/ET, features five overweight friends who decide to pursue healthier lifestyles in time for their friend Anna's wedding. Diet Tribe follows their efforts to try to lose weight and change their lives with the help of Stacy Kaiser, a psychotherapist, and Jessie Pavelka, a model and personal trainer. TVGuide.com caught up with Pavelka to get the skinny on the series, find out his fitness philosophy — and how the rest of us can stay motivated to get in shape, long after the holidays have passed. TVGuide.com: Can you tell us about Diet Tribe and your role on the series? Jessie Pavelka: It's about five obese women who are all best friends, and they've enabled each others' bad ... (link)