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This figure shows the results of a randomized crossover trial conducted in 6 lean men, who ate all of their meals and were given ad libitum access sugar to food in a research laboratory during three separate 14-day periods [1]. The energy density of food was covertly changed during each 14-day feeding period. The results showed that diet energy density was directly associated with total energy intake, which affected body weight. During the 14-day period sugar of high-energy-density food consumption (39% fat, 48% carbohydrate, 13% protein; 737 kJ/100 g), sugar subjects gained about 2 lb, whereas during the 14-day period of low-energy-density food consumption (38% fat, 49% carbohydrate, 13% protein; 373 kJ/100 g), subjects lost about 2 lb. Body weight did not change when medium-energy-density (40% fat, 47% carbohydrate, 13% protein; 549 kJ/100 g) foods were consumed. Additional studies are needed to evaluate the long-term effect of low-energy-density diets on body weight. Slide 6 of 6 Relationship between adiposity and frequency of eating in a restaurant Obesity and dietary therapy adiposity | restaurant eating | portion size | body fat Eating in restaurants increases the
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