£115.00
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Results: ~2-3 weeks
Doctor’s report included
Convenient home or clinic sampling
Free delivery & returns
The lactose intolerance genetic test analyses single nucleotide polymorphisms (SNPs) in the MCM6 gene (e.g., -13910 C/T) and LCT gene, which regulate lactase enzyme production and indicate risk of primary lactose intolerance.
Sample collection: A small blood sample or cheek swab is taken by a kit at home or in one of our UK clinics. Our kit includes everything needed; simply return the sample in the pre-paid envelope. Results include a personalised doctor’s interpretation.
Age restriction: Adults 18+ only (guardian consent required for minors).
The lactose intolerance genetic SNP panel is a DNA test that identifies genetic variants linked to reduced lactase production, causing difficulty digesting lactose in dairy. It distinguishes primary (genetic) intolerance from secondary causes. Your doctor may order this test if you have symptoms like bloating or diarrhoea after dairy. The test helps guide dietary changes. Swift Blood Tests processes samples rapidly, with results and a doctor’s report typically within 2-3 weeks.
ariants associated with adult-onset lactose intolerance.
checks for congenital or primary intolerance.
determines high or low genetic risk for lactose malabsorption.
A blood sample or cheek swab is required. No special patient preparation (such as fasting) is needed. Simply follow kit instructions. Send samples via the next-day laboratory service.
In individuals with symptoms after dairy consumption.
From secondary intolerance due to gut issues.
For dietary advice or enzyme supplements.
Such as those with family history or from populations with high prevalence.
You may be advised to take a lactose intolerance genetic test if you have any of the following signs or risk factors: - Symptoms after dairy: Bloating, diarrhoea, abdominal pain, or gas. - Family history: Relatives with lactose issues. - Congenital suspicion: In infants with severe symptoms from birth. - Unexplained gut problems: Persistent discomfort linked to milk products. For example, a patient with bloating after cheese may have risk SNPs. Similarly, someone avoiding dairy might confirm genetic cause. Your doctor will interpret the results alongside your history and may recommend dietary trials.
If you can’t find the test you’re looking for, simply give us a call and our support team will guide you to the right option. We’re here to ensure you get the correct test quickly and confidently.
It analyses DNA for variants in genes like MCM6 and LCT that affect lactase production, indicating risk of lactose intolerance.
It is often ordered for symptoms like bloating after dairy or to confirm genetic cause.
No special preparation is usually required. You can eat and drink normally.
A cheek swab or small blood sample is taken. It is quick and simple. For blood, you may feel a brief pinch.
Risks are very low for swab; minimal for blood, like slight bruising.
Results are typically available within 2-3 weeks. Swift Blood Tests provides a detailed doctor’s report. You will be notified by email or phone.
Yes. Swift Blood Tests offers a convenient home kit with instructions. Return by post.
Genetic results are stable, but discuss symptoms for interpretation.
Mutations indicate high risk of intolerance; no mutations suggest other causes.
This test is intended for adults (18+). For children, consult a paediatric specialist or contact us.
Read All Our Google ReviewsGreat service. I’m not the best with needles, however, Jo made me feel comfortable and at ease which made the whole process much more tolerable. 5 stars from me.
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