The Importance of Liquid Intake

Drinking water before, during and after exercise may be the best drink to reach for around a workout. Exercising without proper fluid intake could cause mild dehydration. Whatever you decide to eat or drink after a workout, also be sure to drink water.

If you sweat a lot during exercise and/or exercise for a long duration, you may need to replenish electrolytes along with fluids.
Most sports drinks provide electrolytes (i.e. potassium and sodium) along with carbohydrate sources.

Coconut water and eating real foods can also provide electrolytes after exercise.

Avoid drinking alcohol after exercise, especially in large doses. If you are going to drink alcohol afterwards, wait a few hours before drinking alcohol and keep serving to moderate levels.

Drinking caffeine before or after exercise could offer some benefits, but there is a wide individual tolerance.
If you do want coffee after a workout, avoid drinking high calorie, sweetened drinks. They can often provide more calories than you burned off in your workout session.

Moral of the story … don’t forget your water!