Jonathan Purtell, MS Title: Registered Dietitian Education: SUNY Oneonta Expertise: Nutrition Board Certified Registered Dietitian through the Commission on Dietetic Registration Experience Jonathan Purtell, MS, RDN, CDN, is a registered dietitian at Lenox Hill Hospital. His primary interests include surgical and neurosurgical intensive care, orthopedic, obese/post-bariatric, and gastrointestinal patients. He is also a contributing writer for multiple publications including USA Today, Health Digest, Shape, and Livestrong. As a dietitian I am committed to the vision of holistic health: I believe that even though health and well-being can be broken down into parts each part is ultimately inseparable from the whole.-Jonathan Purtell, MS, RDN, CDN Education Jonathan received his bachelor's and postgraduate degree with Honors in Nutrition and Dietetics from SUNY Oneonta. He also completed a graduate internship in dietics at the Mohawk Valley Health System in Utica, New York. About Health Health, a Dotdash Meredith Brand, is an award-winning online resource for empathetic, trustworthy, and actionable health and wellness information so you can make the best choice for your health. We reach more than 9 million readers a month. We ensure the accuracy of our content by relying on seasoned health journalists, credentialed medical professionals and thorough fact checkers. Learn more about us and our editorial process.