Most of the studies found suppression of appetite occurred at exercise intensities greater than ~70% of aerobic capacity. Lactate produced during high-intensity exercise is suggested to suppress appetite by suppressing ghrelin levels.
IS EXERCISE AN APPETITE SUPPRESSANT (WHAT SCIENCE SAYS!)SUMMARY
- The question of whether is exercise an appetite suppressant is hotly debated.
- Higher intensity exercise is associated with greater appetite suppression.
- Lactate levels produced during exercise can suppress the hunger-stimulating hormone ghrelin.
Acute exercise intensities have a mixed impact on appetite; some studies show an increase in appetite, while others show a decrease.(1) For instance, exercise caused subjects’ energy intake to range from -243.3 calories to +278.5 calories. In the study, 56% of the subjects ate the same or less, while 38% ate more after exercising.(2)
Some individuals suggest that higher intensity exercises might make some people want to eat more. If you experience hunger after a workout, you’re not the only one. You can explore discussions on Reddit where people discuss feeling constantly hungry after starting their workout routines.
Higher glycogen replacement and carbohydrate oxidation (i.e., the usage of carbohydrates during exercise) correlate with the post-exercise energy intake response.
One study discovered a positive correlation between the amount of carbs burned and the number of calories consumed after exercise.(2)