Information about the author John Yudkin (1910-95) was a British physiologist and nutritionist, whose books include "This Slimming Business," "Eat Well, Slim Well," and "This Nutrition Business." He gained international fame with his book "Pure, White and Deadly," first published in 1972, and was one of the first scientists to claim that sugar is a major cause of obesity and heart disease. Robert H. Lustig, MD, has spent the last twenty years treating childhood obesity and studying the effects of sugar on the central nervous system and metabolism. He is the director of the Weight Assessment for Teen and Child Health Program at the University of California, San Francisco, and also a member of the Obesity Task Force of the Endocrine Society. His YouTube lecture "Sugar: The Bitter Truth" has received over six million views, and his book "Fat Chance: Beating the Odds Against Sugar, Processed Food, Obesity" has garnered significant attention.