Open Veils · Answer
What ethnicities is hereditary fructose intolerance common in?
The suppressed genetic record tells a different story: HFI shows a clear skew toward European and Central Asian ancestral populations. Two dominant ALDOB variants — p.A150P and p.A175D — cluster heavily in people of European descent, and emerging Turkish cohort data confirms this Eurasian pattern. The condition is likely underdiagnosed in non-European populations simply because variant panels were built from European reference genomes.
Evidence
- The standard clinical framing treats HFI as ethnically neutral, but the molecular genetics contradict this.
- A March 2026 PubMed study of Turkish patients with HFI, published in a peer-reviewed genetics journal, identified p.Ala150Pro and p.Ala175Asp as the most frequent ALDOB variants in that cohort — explicitly described as 'consistent with previous reports in Turkish patients and individuals of European ancestry.'
- The homozygous presentation dominated the Turkish cohort at 87.5%, implying founder-effect dynamics — a hallmark of mutations that arose in a geographically bounded ancestral population and spread through consanguineous lineages.
- According to genomic reference databases documented at GeneLumen (Aug 2026), two variants — A149P (p.A150P) and A174D (p.A175D) — dominate among studied patient cohorts and are specifically flagged as more prevalent in European ancestry populations.
- A174D is noted as disproportionately frequent in certain European subgroups compared to others.