P.K. Newby, ScD, MPH, MS, is a Harvard- and Columbia-trained scientist and thought-leader whose multidisciplinary background creates a richly textured view on why what we eat matters, farm to fork and far beyond. Dr. Newby is an expert on diet, chronic disease prevention, and sustainability, bringing deep knowledge and sound scientific evidence into today's critical conversations--and fights misinformation in all the ways she can. Dr. Newby has authored more than 60 peer-reviewed scientific publications as well as multiple books and e-books, including National Geographic's Superfoods (2015) and Foods for Health (2014). She previously served on the faculties at Tufts, Boston University, and Harvard, where she won multiple research, teaching, and leadership awards.

Newby's passion for nutrition stems from a life-long love affair with food, from cooking, baking, and gardening to working in the restaurant industry. She was one of the "best undiscovered cooks" on ABC's The Taste (2015), where she created plant-based, globally-inspired cuisine rooted in her Healthy Hedonism philosophy. In 2019, Dr. Newby launched her second company, Food Matters Media, with the mission to build a kinder and more just food system that promotes health, longevity, and sustainability while protecting people and the planet and all its inhabitants.