The metabolic window (also called anabolic window) is a term used in strength training to describe the 30-minute period (give or take, depending on the individual) after the exercise during which nutrition can move the body of a catabolic to anabolic state. a. More specifically, it is during this period that the consumption of proteins and carbohydrates can contribute to the increase of the muscular mass. Some theorists believe that the metabolic window begins to close in the minutes of the end of a workout. The same nutrients taken two hours later result in significantly reduced protein synthesis and muscle glycogen storage. Further research is needed on the effects of food synchrony and exercise, but the methodology should be considered in these experiments. Currently, there is not enough scientific evidence to support the metabolic window theory.