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Lactase Genotyping

Lactase Genotyping

Lactase Genotyping determines your genetic ability to digest lactose. For women, understanding lactose tolerance is important for calcium intake planning during pregnancy and for bone health.

Doctor's Assessment Included

Lactase Genotyping: what this test measures

This test analyses specific genetic variants near the LCT gene that determine whether your body continues to produce lactase into adulthood or gradually reduces production. It does not measure current enzyme activity.

Lactase Genotyping: why this value matters

Knowing your lactase genotype provides a definitive answer about your genetic capacity to digest lactose, guiding dietary decisions and avoiding unnecessary restrictions.

Lactase Genotyping: when is testing worthwhile?

Consider this test if you experience digestive symptoms after consuming dairy products or want a definitive genetic answer about lactose tolerance.

Lactase Genotyping: symptoms of a high or low value

Low Levels

A lactase-persistent genotype means you are genetically able to digest lactose throughout life and are unlikely to have primary lactose intolerance.

High Levels

A lactase non-persistent genotype indicates genetic predisposition to reduced lactase production in adulthood, which may cause bloating, gas, diarrhoea, and cramps after consuming dairy.

Lactase Genotyping: lifestyle and this value

If you have lactase non-persistence, you may still tolerate small amounts of dairy, especially fermented products like yoghurt and aged cheese. Lactase supplements before meals can help. Ensure adequate calcium intake from alternative sources.

Lactase Genotyping: frequently asked questions

Is lactase genotyping the same as a lactose intolerance test?

Not exactly. Genotyping reveals genetic predisposition, while a hydrogen breath test measures current ability to digest lactose.

Can lactose tolerance change with age?

Yes. People with a non-persistent genotype typically produce decreasing lactase from childhood through adulthood.

Does this test require fasting?

No. Since this is a DNA test, fasting is not required and dairy consumption does not affect the result.

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