John Poothullill, MD, FRCP practiced medicine as a pediatrician and allergist for more than 30 years. He began his practice in 1974 and retired in 2008. He holds certifications from the American Board of Pediatrics, The American Board of Allergy & Immunology, and the Canadian Board of Pediatrics.
During his medical practice, John became interested in understanding the causes of and interconnections between hunger, satiation, and weight gain. His interest turned into a passion and a multi-decade personal study and research project that led him to read many medical journal articles, medical textbooks, and other scholarly works in biology, biochemistry, physiology, endocrinology, and cellular metabolic functions. This eventually guided Dr. Poothullil to investigate the theory of insulin resistance as it relates to diabetes. Recognizing that this theory was illogical, he spent a few years rethinking the biology behind high blood sugar and finally developed the fatty acid burn switch as the real cause of diabetes.
Dr. Poothullil has written articles on hunger and satiation, weight loss, diabetes, and the senses of taste and smell. His articles have been published in medical journals such as "Physiology and Behavior", "Neuroscience and Biobehavioral Reviews", "Journal of Women’s Health", "Journal of Applied Research", "Nutrition", and "Nutritional Neuroscience". His work has been quoted in "Woman’s Day", "Fitness", "Red Book" and "Woman’s World".