The Yale Food Addiction Scale (YFAS) was developed to provide a validated measure of addictive-like eating behavior based upon the diagnostic criteria for substance dependence. In the current study conducted by researchers at the University of Michigan, Arizona State University, and Duke University, the YFAS, Version 2.0 was used in a sample of 550 participants. Results showed that 14.6% met criteria for food addiction. The YFAS 2.0 demonstrated good internal consistency, as well as convergent, discriminant, and incremental validity. Elevated scores on the YFAS 2.0 were associated with higher rates of obesity and more severe problem eating, such as binge eating. High scores on the YFAS also were associated with elevated body mass index, binge eating, and weight cycling. For an example of the YFAS, go to: http://www.globaladdiction.org/dldocs/GLOBALADDICTION-Scales-YaleFoodAddictionScale.pdf
Gearhardt A, Corbin W, Brownell K: Development of the Yale Food Addiction Scale Version 2.0. Psychology of Addictive Behaviors 2016; 30: 113-121.