Appetite and Exercise.
Here’s a new study from the Journal of Medicine and Science in Sport and Exercise. The authors looked at the hormonal, psychological and behavioral response of both women and men to determine any differences in appetite after exercise as opposed to food restriction.
The researchers created an energy deficit for participants in two ways; a) caloric restriction (dieting) or b) a ninety minute exercise session on a treadmill. Blood work revealed that when calorie deficits were created by food restriction, the female participants showed higher blood levels of the hunger hormone ghrelin and lower levels of the hunger suppressing hormone peptide YY than male participants. There were no significant differences in hormone levels between males and females following exercise.
Participants also rated their own appetites and were given the opportunity for a buffet meal . The diet (caloric restriction) group actually ate nearly 300 calories more than the exercise group! Their conclusion is that exercise appears more effective than dieting in actually helping females reduce their daily calorie consumption.
In the past, some studies had suggested that exercise might make people, particularly women, tend to eat more. This study contradicts those earlier findings.
Reference: NAWAL ALAJMI, KEVIN DEIGHTON, JAMES A. KING, ALVARO REISCHAK-OLIVEIRA, LUCY K. WASSE, JENNY JONES, RACHEL L. BATTERHAM, DAVID J. STENSEL. Appetite and Energy Intake Responses to Acute Energy Deficits in Females versus Males. Medicine & Science in Sports & Exercise, 2016; 48 (3): 412 DOI: