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Gene library · Nutrition

Lactose tolerance

rs4988235 · gene LCT (MCM6) · category Nutrition · Free in the Quanome app

Your DNA file reports your genotype at rs4988235 — a marker in the LCT (MCM6) gene that studies link to lactose tolerance. Here's what each genotype is associated with:

GenotypeWhat it's associated with
AALactase persistent — you likely digest lactose (dairy) well into adulthood.
AGLikely lactase persistent — usually able to digest lactose.
GGLikely lactase non-persistent — you may be lactose intolerant; dairy could cause symptoms.

Educational only — not medical or diagnostic advice. A single marker is one of many factors; strand orientation varies between files. Always consult a qualified clinician about your health.

Want to read rs4988235 in your own data? The free DNA explorer checks it in your browser — nothing is uploaded. Or get the full picture in Quanome, which reads your whole genome on-device alongside your labs and Apple Health.

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