Clark, S. M., & Saules, K. K. (2013). Validation of the Yale Food Addiction Scale among a weight-loss surgery population. Eat Behav, 14(2), 216–219. https://doi.org/10.1016/j.eatbeh.2013.01.002
From the validation study’s abstract: “Those meeting the food addiction criteria had poorer percent total weight loss outcomes (32% vs. 27%).”