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Gut HealthEvidence 1B
rs4988235 · LCT
Risk allele: T
Risk-Allele Phenotype
Lactose intolerance, loss of lactase persistence after childhood and malabsorption
Reference-Allele Phenotype
Lactase persistence phenotype with continued enzyme expression in adulthood
Evidence Level
1B — Strong — single high-quality study See methodology for how we grade evidence.
Cross-References
Informational only
This page summarizes population-level evidence about a genetic variant. It is not a diagnosis. Your individual risk depends on your full genome, lifestyle, environment, and family history. Consult a healthcare provider for personalized medical advice.
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