Excerpts from the Handbook for the Treatment of Eating Disorders, D.M. Gardner and P.E. Garfinkel (editors), Gilford Press, New York, N.Y., 1997.
Ancel Keys conducted a study to determine the effects of food restriction. His results were amazing. We know that restriction causes weight loss but look at all the other symptoms of the experiment. They are classic eating disorder symptoms. The study shows that restricting food affects us not only physically, but psychologically and behaviorally as well. Note that even after the subjects started eating normally the psychological and behavioral effects remained.