All-in-one formulas are made up of the most thoroughly studied ingredients and are designed to replenish glycogen and to help prevent catabolism.
All individuals looking to get the best from their workouts should have the right nutrients at the right time. The best way to recover from strenuous exercise is to take advantage of the 'anabolic window' and have an all-in-one formula right after the workout.
The 'anabolic window' is a period right after the workout (namely the first 30 to 45 minutes) where the body is hungry for nutrients. As a result, all nutrients will be potentially absorbed at a higher rate.