Differences in glycaemia, hormonal response and energy expenditure after a meal rich in mono‐ and disaccharides compared to a meal rich in polysaccharides in physically fit and sedentary subjects

摘要

Summary.Postprandial glycaemia, hormonal response and energy expenditure (EE) were measured after two isocaloric carbohydrate‐rich meals (69 energy‐percent E carbohydrate, 16 E fat) rich in either mono‐ and disaccharides (47 E, half of which sucrose) (MD) or polysaccharides (64 E; P). Both meals were based on natural food items and were tested in a cross‐over design in a group of sedentary (S) and trained (T) healthy, young subjects. Compared with the P meal blood glucose concentrations were significantly decreased and plasma insulin concentration significantly increased after the MD meal. A group difference was observed after the P meal with increased glucose and decreased insulin concentrations for T compared with S. Plasma norepinephrine concentrations were significantly increased after the MD meal compared with the P meal, but for S only. For both groups a significantly increased EE was observed 3 and 5 h after the MD meal compared with the P meal. However, no significant differences between the meals were observed in plasma insulin or catecholamine concentrations 3 and 5 h postprandially, when EE was measured. In conclusion, significant differences were observed in postprandial glucose and hormone responses as well as energy expenditure after two meals based on either mono‐ and disaccharide‐rich or polysaccharide‐rich food items. Physical fitness level influenced the glucose and hormonal responses but not the relative increases in postprandial energ