Kellyann Petrucci, MS, ND, is a board-certified naturopathic physician, a certified nutrition consultant, and the author of four books, including the New York Times bestseller Dr. Kellyann’s Bone Broth Diet and Dr. Kellyann’s Cleanse and Reset. A concierge doctor for celebrities in New York and Los Angeles, Dr. Kellyann has been a host for public television specials and has been featured on The Dr. Oz Show, The Doctors, Good Morning America, and Today.