Dr. Robert Lustig, MD, is a retired professor at the University of California, San Francisco and specializes in the field of neuroendocrinology. He explained the dangers of consuming sugar and said that it poisons mitochondria that causes a decrease in the energy that powers our cells. Sugar is not a food because it inhibits growth and energy production. Lustig says that sugar feeds cancer, and it dramatically raises the risk for Alzheimer's Disease, cardiovascular disease, and other metabolic diseases. He said that if people eat a real food diet, most chronic diseases go away.

Dr. Lustig said that in the 1960's, the sugar industry paid $6,500 to Fred Stare, the chairman of the Department of Nutrition at the Harvard School of Public Health, and his associate Mark Hegsted, who later became the head of the US Department of Agriculture, to exonerate sugar and instead blame saturated fat for negative health effects. They were paid to write false review articles in the New England Journal of Medicine that were peer reviewed.