Aldolase B is an enzyme that plays a crucial role in the metabolism of carbohydrates. It is primarily found in the liver and is responsible for breaking down fructose, a type of sugar found in many fruits and sweeteners. This enzyme helps convert fructose into usable energy for the body. Deficiency in aldolase B can lead to a rare genetic disorder known as hereditary fructose intolerance. This condition prevents the proper breakdown of fructose, resulting in the accumulation of toxic substances in the liver. Symptoms may include abdominal pain, vomiting, and hypoglycemia, particularly after consuming fructose-rich foods.