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Short-term effect of eggs on satiety in overweight and obese subjects

30/12/2005

Objective
To test the hypotheses that among overweight and obese participants, a breakfast consisting of eggs, in comparison to an isocaloric equal-weight bagel-based breakfast, would induce greater satiety, reduce perceived cravings, and reduce subsequent short-term energy intake.

Subjects
Thirty women with BMI’s of at least 25 kg/M2 between the ages of 25 to 60 y were recruited to participate in a randomized crossover design study in an outpatient clinic setting.

Design
Following an overnight fast, subjects consumed either an egg or bagel-based breakfast followed by lunch 3.5 h later, in random order two weeks apart. Food intake was weighed at breakfast and lunch and recorded via dietary recall up to 36 h post breakfast. Satiety was assessed using the Fullness Questionnaire and the State-Trait Food Cravings Questionnaire, state version.

Results
During the pre-lunch period, participants had greater feelings of satiety after the egg breakfast, and consumed significantly less energy (kJ; 2405.6 ± 550.0 vs 3091.3 ± 445.5, Egg vs Bagel breakfasts, p < 0.0001), grams of protein (16.8 ± 4.2 vs 22.3 ± 3.4, Egg vs Bagel breakfasts, p < 0.0001), carbohydrate 83.1 ± 20.2 vs 110.9 ± 18.7, Egg vs Bagel breakfasts, p < 0.0001), and fat 19.4 ± 5.1 vs 22.8 ± 3.2, Egg vs Bagel breakfasts, p < 0.0001) for lunch. Energy intake following the egg breakfast remained lower for the entire day (p < 0.05) as well as for the next 36 hours (p < 0.001).

Conclusions
Compared to an isocaloric, equal weight bagel-based breakfast, the egg-breakfast induced greater satiety and significantly reduced short-term food intake. The potential role of a routine egg breakfast in producing a sustained caloric deficit and consequent weight loss, should be determined.

Reference

Vander Wal JS, Marth JM, Khosla P, Jen K-LC, Dhurandhar NV (2005) Short term effect of eggs on satiety in overweight and obese subjects. Journal of the American College of Nutrition 245: 510-515.

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