Kellyann Petrucci, M.S., N.D. is the author of the New York Times bestselling books "Dr. Kellyann’s Bone Broth Diet," "Dr. Kellyann’s Bone Broth Cookbook," and "The 10-Day Belly Slimdown." She also is the host of the highly successful PBS special, "21 Days to a Slimmer, Younger You" and "10-Day Belly Slimdown with Dr. Kellyann."

A weight-loss and natural anti-aging expert, Petrucci is a concierge doctor for celebrities in New York City and Los Angeles. She is a board-certified naturopathic physician and a certified nutrition consultant. Dr. Petrucci attended Temple University and St. Joseph’s University before doing postgraduate work in Europe, studying naturopathic medicine in England and Switzerland. She is one of the few practitioners in the United States certified in biological medicine by the esteemed Dr. Thomas Rau of the Paracelsus Klinik Lustmuhle in Switzerland.

Petrucci is a weekly contributor on Dr. Oz and appears regularly on Good Morning America and other national news programs. As the driving force behind the popular website drkellyann.com. Currently, Petrucci is focusing much of her attention on developing innovative beauty- and food-based products.

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