![]() Having free will means that we are ‘free’ to choose what foods and how much to eat. Wikipedia, a reflection of a public consensus, defines free will as ‘the purported ability of rational agents to exercise control over their actions, decisions, or choices to such an extent that they can be held responsible for their selections’. This concept lies at the heart of our legal system and is fundamental to many religions. The majority of Americans believe in free will ( Reference Nahmias, Morris and Nadelhoffer 1 ). Combining the technique of daily weight monitoring with accepting that our eating behaviour is not determined totally by our free choice, we may be able to curb the obesity epidemic. Only when individuals are protected from environmental variables by gastric surgery or limited to consume only portion-controlled meals can they successfully maintain a reduced weight. Despite the plethora of diets, weight-loss clubs, drugs and mechanical devices available to facilitate weight loss, once treatment is terminated and people return to the ‘free’ environment, their weight returns to pre-treatment levels. Variables such as portion size, variety of foods offered, fat content of the diet, the number of people eating, the location where eating occurs and even watching food advertisements act as ‘food primes’ causing individuals to increase their energy intake. ![]() The evidence demonstrates, however, that this is not true. ![]() The solution to the obesity epidemic, therefore, must centre on a reduction in food consumption, a position well accepted by the American population who think that they, as individuals, are responsible for their adiposity by holding the belief that the decision as to what and how much to eat is determined by their own free will. An empirical analysis of the literature suggests that the increased weight can be accounted for by an increase in food intake. The increase in body weight in the USA over the past several decades is now commonly referred to as the ‘obesity epidemic’. ![]()
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