Food, hydration with electrolytes, and sleep are the three things your body needs to recover. Skip any of them and you risk overtraining, injuries, and stress fractures. Get all three right and recovery improves dramatically.
This is what I call the big 3 when it comes to recovery: food, hydration, and sleep. There is no such thing as overtraining if you have enough food, if you have enough hydration, and if you have enough sleep. But if you are lacking in one of these 3 areas, then of course overtraining will happen, injuries will happen, fatigue will happen, stress fractures will happen if you are not doing one of these 3 things, especially the food and the sleep part. If you are trying to recover from an injury, or if you're just trying to recover from a really hard workout and keep yourself healthy in season, make sure you are dialed in on eating enough food, drinking enough water, and enough electrolytes and getting enough sleep. And I promise those things will do wonders for you.
