My guest today is Dr. Richard Johnson.  He is a professor of medicine at the University of Colorado and is a clinician, educator, and researcher. He is board certified in internal medicine, infectious diseases, and kidney disease and is the founding editor of Comprehensive Clinical Nephrology, one of the main textbooks on kidney disease. For more than 20 years, he has led research on the cause of obesity and diabetes, with special interest in the role of sugar (especially fructose) and uric acid. His research has been highly cited, published in top medical journals, and supported by grants from the National Institutes of Health. He is the author of The Sugar Fix and The Fat Switch. You can find more about him at:www.drrichardjohnson.comDr Greg's clinic is at:vibrantlifedc.com