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The incidence of primary hypolactasia amongst native Irish

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Primary hypolactasia is rare amongst Native Irish, occurring in at most 4% of the healthy adult population. Routine screening for primary hypolactasia as a cause of gastrointestinal symptoms in Irishmen is unjustified.

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Fielding, J.F., Harrington, M.G. & Fottrell, P.F. The incidence of primary hypolactasia amongst native Irish. I.J.M.S. 150, 276–277 (1981). https://doi.org/10.1007/BF02938254

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  • Sucrase Activity
  • Lactase
  • Lactase Persistence
  • Lactase Activity
  • Lactose Malabsorption