dieting While one can diet to gain weight, or for specific physiological needs such as allergies or diabetes management, ‘dieting’ tends to refer to the process of manipulating food intake and energy output in order to reduce
body weight for health or aesthetic reasons. To reduce weight, fewer calories than the body needs are ingested, forcing the body to obtain its energy from fat stores. To lose 1 lb per week, about 3500 kcal, (the weight of 1 lb of fat tissue) must be subtracted from the diet.
But the Latin root
diaeta, ‘a way of life’, more accurately describes the daily realities of contemporary dieters. Fostered by Western medical and beauty standards, which prize slenderness, a 30 billion dollar diet industry has produced a wealth of diet plans ranging from hazardous fad diets to the nutritionally healthful. Recent research has emphasized the efficacy of drug therapies such as amphetamines and leptin, but the potential side-effects continue to pose serious problems. Since the majority of people who lose weight via dieting eventually gain it back, dieting has become a constant way of life for large numbers of Western people.
Dieting, particularly in order to achieve a thin ideal, only makes sense in the midst of affluence. Where food shortages endure, dieting (versus
fasting for religious or cultural reasons) holds little value. On the other hand, affluent Western societies admire successful dieters for their self-discipline and willpower, as well as for their slim bodies.
Diet regimens, including those for weight loss, have existed for centuries, but modern dieting gained popularity in the late nineteenth and early twentieth centuries. Scientists who turned their attention to nutrition in the nineteenth century began to argue against overeating. Researchers such as Wilbur Atwater and Ellen Swallows ‘discovered’
vitamins,
minerals, and calories as well as an understanding of how the body converted fat into energy. From this knowledge, the ‘new nutritionists’ laid the groundwork for modern dieting. They advocated lower body weights and smaller meals, and encouraged people to make dietary decisions based on the chemical composition of food (its nutritional value) versus taste or appearance. They encouraged everyone to count calories. Though invisible to the naked eye, excess calories would pile on very visible fat.
At the same time, a new, slender ideal of beauty, especially for women, gained cultural prominence. As historian Lois Banner has pointed out, in the late nineteenth century several popular ideals of female beauty, including robust and curvaceous images, competed for public attention, but by the 1920s, the slim-hipped, small-breasted, straight-lined flapper became the popular ideal. Though the exact dimension and shape of beauty ideals have shifted, the thin standard has never waned.
Margaret A. Lowe
Bibliography
Banner, L. (1983). American beauty. Knopf, New York.
Schwartz, H. (1987) Never satisfied: a cultural history of diets, fantasies, and fat. Collier–Macmillan, London.
See also
diets;
energy balance;
obesity.