Exercise Can Temporarily curb appetite but may increase hunger later
Research shows a single workout can briefly suppress hunger hormones, but appetite usually returns within an hour, and regular exercise may modestly raise fasting hunger without boosting overall calorie intake.
Scientific reviews indicate that a single bout of exercise can temporarily reduce appetite by decreasing ghrelin and increasing satiety hormones, but this hormonal shift typically disappears within half an hour to an hour and does not serve as a lasting appetite-control method. When people engage in regular exercise, especially those above a healthy weight, studies show a modest increase in fasting hunger yet no reliable rise in post-meal hunger or overall daily calorie intake, suggesting the body does not fully compensate for the calories burned.
Both high-intensity interval training and moderate-intensity continuous workouts produce brief appetite suppression, though differences between them are inconsistent. The piece stresses that personal preference and enjoyment are more important than chasing short-term hormonal effects. It also outlines practical tips for handling post-exercise hunger, such as hydrating first, distinguishing true hunger from reward cravings, and opting for protein-, fiber-, and healthy-fat-rich snacks. The advice is grounded in research from the Charles Perkins Centre and the Department of Endocrinology at RPA Hospital, University of Sydney.
Why it matters
Understanding how exercise influences hunger helps people manage weight without over-eating after workouts.
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