Premeal Consumption of a Protein-Enriched, Dietary Fiber-Fortified Bar Decreases Total Energy Intake in Healthy Individuals

• Published in: Diabetes & metabolism journal Vol. 43; no. 6; pp. 879 - 892
• Main Authors: Ahn, Chang Ho, Bae, Jae Hyun, Cho, Young Min
• Format: Journal Article
• Language: English
• Published: Korea (South) Korean Diabetes Association / Daehan Dangnyobyeong Hakoe 01.12.2019; Korean Diabetes Association; 대한당뇨병학회
• Subjects: Appetite; Body mass index; Calories; Carbohydrates; Chronic illnesses; Diabetes; Dietary fiber; Energy intake; Food; Glucose; Hormones; Insulin; Metabolism; Nutrition; Obesity; Original; Peptides; Plasma; Proteins; Variance analysis; Weight control; 내과학; United States > US; Proteins; Peptide YY; Dietary fiber; Glucagon-like peptide 1
• ISSN: 2233-6079; 2233-6087; 2233-6087
• DOI: 10.4093/dmj.2018.0202

A premeal load of protein can increase satiety and reduce energy intake. Dietary fiber also conveys metabolic benefits by modulating energy intake. We made a protein-enriched, dietary fiber-fortified bar (PFB) and aimed to investigate its effects on food intake and gut hormone secretion in healthy individuals. Twenty subjects with normal glucose tolerance were enrolled. On three separate visits, the subjects received, in a randomized order, one of the following: a PFB containing 73 kcal with 10.7 g of protein and 12.7 g of dietary fiber; a usual bar (UB) containing the same calories as the PFB but only 0.9 g of protein and no dietary fiber; or water (control). After 15 minutes, the subjects had intake of a test meal. Food consumption, appetite, and plasma gut hormone levels were measured. Total energy intake, including the bar and the test meal, was significantly reduced with the PFB preload compared to the water (904.4±534.9 kcal vs. 1,075.0±508.0 kcal, =0.016). With the UB preload, only the intake of the test meal was reduced ( =0.044) but not the total energy intake ( =0.471) than the water. Fullness was also significantly increased after the PFB. In addition, postprandial glucose levels decreased and glucagon-like peptide-1 levels increased with the PFB compared with both the UB and water. In healthy individuals, a premeal supplementation of PFB reduced total energy intake and decreased postprandial glucose excursion. This finding necessitates long-term studies regarding clinical use in obesity.