How many grams of glycogen are stored in the liver?

• A. 50 g
• B. 100 g
• C. 200 g
• D. 400 g

Answer: (B)

Glycogen stored in the liver is about 100 grams. This amount supports keeping blood glucose levels stable during fasting or between meals, as the liver can release glucose into the bloodstream when needed. The liver’s glycogen pool is different from skeletal muscle glycogen, which is larger (roughly 300–400 grams) but cannot raise blood glucose because muscle lacks the enzyme to export glucose. So while total body glycogen is around 400 grams, the liver portion is about 100 grams, making 100 g the appropriate value for liver glycogen.