Greater protein quality of an egg breakfast may be inadequate to induce satiety during weight loss, compared with a cereal breakfast of equal protein quantity. (17th November 2022)

• Record Type: Journal Article
• Authors: Zhu, Yaqiong; Bailey, Dylan; Childress, Allison; Dawson, John A.; Binks, Martin; Dhurandhar, Nikhil V.
• Is Part Of: International journal of food sciences and nutrition. Volume 73:Number 8(2022)
• Page Start: 1096
• Page End: 1103
• Publication Date: 2022-11-17
• Subjects: Protein quality -- protein quantity -- satiety -- weight management -- egg protein -- food intake -- appetite hormones; Food -- Analysis -- Periodicals; Nutrition -- Periodicals; 641.3
• DOI: 10.1080/09637486.2022.2133097
• Languages: English
• ISSNs: 0963-7486

Abstract

Abstract: We compared the effects of consuming egg-breakfast of superior protein quality to cereal-breakfast of similar energy density and protein quantity, but lower protein quality. Two, two-week randomised crossover clinical trials included 30 otherwise healthy women with overweight or obesity. Subjects received counselling to follow a reduced-calorie diet. Under supervision, participants consumed either breakfast for one-week then crossed over to the opposite breakfast. Experiment-1 outcome variables included post-breakfast appetite hormones, glucose and insulin, subjective markers of satiety and energy intake at lunch and dinner. In Experiment-2, an appealing food (brownies) was included in lunch. Following the breakfasts, Experiment-1 showed no significant differences in outcome variables. In Experiment-2, the egg-breakfast increased fullness ( p = 0.038), but lunch-time energy intake was not different. If these findings apply to other breakfasts, it suggests that in comparing two breakfasts with similar protein quantity, the greater protein quality of a breakfast may not be adequate to induce satiety.