Dr. Allen is a board certified family physician and also has board certification in obesity medicine. He runs a practice in Henderson Nevada that focuses on using lifestyle medical techniques combined with modern understanding of biochemistry and physiology to assist patients with reversing metabolic disorders or treating acute and chronic illnesses. He is internationally recognized and has won multiple awards over his career as a physician. His recent book, Oversaturated, is about how to discuss dietary fats with patients. He talks about how the common understanding of saturated fats has been manipulated by certain segments of the food industry to favor their products and has resulted in large numbers of misinformation in the nutrition space. The book gives some simple techniques that most healthcare team members can use to emphasize the scientific understanding of saturated fats to their patient population.