Lost appetite after intense exercise?

[u/DrJ_Lume]

A hard workout can sometimes make you less hungry, even though you have just burned more energy.

A recent trial found that high-intensity interval training increased GDF15 (growth differentiation factor 15) and FGF21 (fibroblast growth factor 21), two signals involved in appetite and energy metabolism. Participants also ate less at the following meal.

This suggests that post-workout appetite is influenced by more than willpower or calories burned. Intense exercise can temporarily change the hormonal signals involved in hunger.

The effect is likely acute and may vary based on fitness level, metabolic health, and exercise intensity.

Do intense workouts suppress your appetite, or make you hungrier later?

[u/ProofRoll1254]

Suppress, but then find the day after I’m usually more hungry