Glycogen Storage Disease (GSD) refers to a group of inherited disorders that affect the body's ability to store and use glycogen, a form of sugar that serves as an energy reserve. In individuals with GSD, enzymes responsible for breaking down glycogen are deficient or absent, leading to abnormal glycogen accumulation in tissues, particularly in the liver and muscles. Symptoms of GSD can vary widely but often include low blood sugar, muscle weakness, and growth delays. Treatment typically focuses on managing symptoms and may involve dietary changes, such as frequent meals rich in carbohydrates, to help maintain stable blood sugar levels.