If you eat protein and carbs right after working out, you might recover faster, feel less tired, and refill your energy stores better than if you wait more than 2 hours.

If you work out hard with weights or long cardio, eating the right nutrients right after helps you bounce back from tiredness more than if you do a quick or light workout.

Protein supplements might help your muscles refill energy faster after a workout compared to just carbs — but it could just be because they add extra calories, not because protein itself speeds up recovery.

If you eat enough protein during the day, it might not matter whether you drink your recovery shake right after a workout or wait a bit — you’ll still recover just as well.

Older people or those who don’t usually eat much protein might get more out of having a protein and carb snack right after working out, compared to younger or high-protein eaters.

Protein supplements might give athletes a small boost in endurance, especially when taken with carbs—but it could just be because they're eating more calories overall.