Short answer · Medically reviewed summary · Last updated: 2026-05-08
Hereditary Fructose Intolerance (HFI), often referred to simply as Fructose Intolerance, is a metabolic disorder caused by a deficiency of the enzyme aldolase B. While sometimes confused with dietary fructose malabsorption, HFI is a distinct, serious genetic condition that requires strict lifelong avoidance of fructose, sucrose, and sorbitol. What are the common synonyms for Fructose Intolerance? In medical literature, Fructose Intolerance is most accurately termed Hereditary Fructose Intolerance to distinguish it from common digestive sensitivities.
Hereditary Fructose Intolerance (HFI), often referred to simply as Fructose Intolerance, is a metabolic disorder caused by a deficiency of the enzyme aldolase B. While sometimes confused with dietary fructose malabsorption, HFI is a distinct, serious genetic condition that requires strict lifelong avoidance of fructose, sucrose, and sorbitol.
In medical literature, Fructose Intolerance is most accurately termed Hereditary Fructose Intolerance to distinguish it from common digestive sensitivities. Historical synonyms that may appear in older clinical records include fructose-1-phosphate aldolase deficiency and fructosemia. Because this condition involves an inability to metabolize fructose, it is classified under various nomenclature systems depending on the focus of the research.
Official medical classification systems use specific identifiers to ensure clinical consistency. Hereditary Fructose Intolerance is listed in the Online Mendelian Inheritance in Man (OMIM) database as #229600. Orphanet classifies the condition under ORPHA:332, noting it as a rare inborn error of metabolism. In the ICD-10 and ICD-11 coding systems, it is officially documented under metabolic disorders related to carbohydrate metabolism.
The variety of names stems from the historical evolution of clinical understanding regarding Hereditary Fructose Intolerance. Early researchers often named the condition after the missing enzyme or the resulting biochemical accumulation in the blood. Today, medical professionals prefer the term Hereditary Fructose Intolerance because it clearly distinguishes the genetic nature of the disease from functional gastrointestinal issues like fructose malabsorption, which affects a much larger percentage of the general population.
Medical disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment.