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Lactose Intolerance (LCT Gene) by PCR

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Lactose Intolerance (LCT Gene) by PCR

Accredited Facility E-report Qualified Specialists

This test analyzes variants in the LCT gene, which controls lactase enzyme production. It helps determine genetic predisposition to primary lactose intolerance, where the body has reduced ability to digest lactose.

  • If lactose intolerance is suspected.
  • When bloating, diarrhea, or abdominal discomfort occurs after dairy intake.
  • During evaluation of chronic digestive symptoms.
  • If dietary lactose sensitivity is unclear.
  • As part of gastrointestinal genetic assessment.
  • No fasting is usually required.
  • A blood sample or buccal swab may be collected depending on the lab.
  • Inform the healthcare provider about gastrointestinal symptoms.
  • No dietary restriction is needed before testing.
  • Follow all sample collection instructions carefully.
    • Lactose Intolerance (LCT Gene) by PCR
    No labs currently offering this test.