David Perlmutter is a Naples, Florida based American author. He is the president of the Perlmutter Health Center. Perlmutter is the author of health books and is known for advocating a functional and holistic approach toward treating brain disorders. Perlmutter is also a frequent contributor to publications such as the Huffington Post, The Daily Beast and Mind Body Green. Perlmutter's book has received criticism for perceived "hyperbole" and misrepresentation of data.
Epidemiologist Dr. David Katz, founding director of Yale University's Prevention Research Center, has criticized Grain Brain, saying "Perlmutter is way ahead of any justifiable conclusion" and that many of its claims are "wildly preposterous". 
Perlmutter wrote the book Grain Brain, released September, 2013 in which he addresses nutritional and lifestyle influences and their impact on neurological disordersis which became a New York Times bestseller. 
Perlmutter is the Editor-in-Chief of Brain and Gut.
Perlmutter has received awards for his approaches to neurological disorders including the 2002 Linus Pauling Award, 2006 National Nutritional Foods Association (the "leading representative of the dietary supplement industry" ) Clinician of the Year Award, and 2010 Humanitarian of the Year award from the American College of Nutrition.
Perlmutter, David (September 9, 2014). The Grain Brain Cookbook: More Than 150 Life-Changing Gluten-Free Recipes to Transform Your Health. Little, Brown and Company. ISBN0316334251.
with Loberg, Kristin (September 17, 2013). Grain Brain: The Surprising Truth about Wheat, Carbs, and Sugar--Your Brain's Silent Killers. Little, Brown and Company. ISBN031623480X.