Lactose Intolerance DNA Test
$149.00
Bloating or discomfort after dairy? Your genes may be the reason. The Genetrace At-Home DNA Lactose Intolerance Test analyzes your MCM6 gene to determine whether you are genetically wired to produce lactase into adulthood — the enzyme your body needs to digest lactose in milk and dairy products.
- Free shipping both ways
- Easy-to-use cheek swabs
- AABB, ISO17025 & CLIA accredited lab
Kit includes all lab fees and free return shipping to the lab.
Receive secure, confidential results through your online dashboard.
All tests performed in our AABB, ISO 17025 & CLIA accredited laboratory.
Find out if lactose intolerance is in your DNA
If dairy consistently leaves you feeling bloated, gassy, or uncomfortable, you are not imagining it, and it may be written into your DNA. Lactose intolerance affects an estimated 65% of the global population to some degree, and for most people, the root cause is genetic.
Genetrace DNA Lactose Intolerance Test analyzes the MCM6 gene, which controls whether your body continues producing lactase into adulthood. Lactase is the enzyme responsible for breaking down lactose in dairy. One simple cheek swab is all it takes to get a clear, science-backed answer.
Lactase Persistence vs. Lactose Intolerance: What’s the Difference?
Everyone is born producing lactase. In people with lactase persistence, a genetic variant keeps lactase production active throughout life, allowing them to digest dairy comfortably. In people without this variant, lactase production naturally declines after childhood, leading to the gas, bloating, and discomfort that characterize lactose intolerance. This test tells you exactly which group you fall into.
The DNA Lactose Intolerance Test analyzes five single nucleotide polymorphisms (SNPs) in the MCM6 gene, located on chromosome 2q21. The MCM6 gene contains regulatory elements that control expression of the LCT gene, which encodes the lactase enzyme. Variants in this region determine whether lactase production is maintained into adulthood (lactase persistence) or naturally declines following weaning (lactase non-persistence).
Your Kit Contents
Every DNA Lactose Intolerance Test kit contains everything you need to collect and return your sample from home:
- 2x buccal (cheek) swabs
- Step-by-step instruction leaflet
- Prepaid return envelope
- Unique kit activation code
Your Results
Your results are delivered securely through your Genetrace online account, along with a detailed report explaining your genotype, what it means for your lactase production, and practical guidance on next steps.
Variants Analyzed
| Variant | Ancestral Background | Effect |
|---|---|---|
| rs4988235 | European | Lactase persistence |
| rs182549 | African, Asian | Lactase persistence |
| rs41380347 | African | Lactase persistence |
| rs41525747 | African | Lactase persistence |
| rs145946881 | African | Lactase persistence |
Summary
Find out if lactose intolerance is in your DNA
If dairy consistently leaves you feeling bloated, gassy, or uncomfortable, you are not imagining it, and it may be written into your DNA. Lactose intolerance affects an estimated 65% of the global population to some degree, and for most people, the root cause is genetic.
Genetrace DNA Lactose Intolerance Test analyzes the MCM6 gene, which controls whether your body continues producing lactase into adulthood. Lactase is the enzyme responsible for breaking down lactose in dairy. One simple cheek swab is all it takes to get a clear, science-backed answer.
Lactase Persistence vs. Lactose Intolerance: What’s the Difference?
Everyone is born producing lactase. In people with lactase persistence, a genetic variant keeps lactase production active throughout life, allowing them to digest dairy comfortably. In people without this variant, lactase production naturally declines after childhood, leading to the gas, bloating, and discomfort that characterize lactose intolerance. This test tells you exactly which group you fall into.
What's Measured?
The DNA Lactose Intolerance Test analyzes five single nucleotide polymorphisms (SNPs) in the MCM6 gene, located on chromosome 2q21. The MCM6 gene contains regulatory elements that control expression of the LCT gene, which encodes the lactase enzyme. Variants in this region determine whether lactase production is maintained into adulthood (lactase persistence) or naturally declines following weaning (lactase non-persistence).
Your Kit Contents
Every DNA Lactose Intolerance Test kit contains everything you need to collect and return your sample from home:
- 2x buccal (cheek) swabs
- Step-by-step instruction leaflet
- Prepaid return envelope
- Unique kit activation code
Your Results
Your results are delivered securely through your Genetrace online account, along with a detailed report explaining your genotype, what it means for your lactase production, and practical guidance on next steps.
Technical Information
Variants Analyzed
| Variant | Ancestral Background | Effect |
|---|---|---|
| rs4988235 | European | Lactase persistence |
| rs182549 | African, Asian | Lactase persistence |
| rs41380347 | African | Lactase persistence |
| rs41525747 | African | Lactase persistence |
| rs145946881 | African | Lactase persistence |
Explore your DNA Story
Embark on a journey of self-discovery with our at-home DNA tests, powered by cutting-edge science made accessible for all.
Simple Sample Collection
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How it works
Purchase your kit
Collect DNA Sample
Mail samples to the lab
Receive your results
FAQ's
Here are the answers to the most frequently asked questions about this test.
People who are lactose intolerant cannot digest and absorb the sugar lactose, present in dairy products. This causes digestive symptoms like gas, bloating and diarrhoea when milk and other dairy products are consumed.
The milk sugar lactose is broken down by the enzyme lactase and people who are lactose intolerant make low levels of this enzyme. When the activity of lactase is low, lactose is not properly broken down or absorbed. Undigested lactose builds up in the large intestine allowing for the growth of gas producing gut bacteria, which contributes to the symptoms of lactose intolerance such as bloating bloating, flatulence, and abdominal pain.
Your likelihood of developing lactose intolerance depends on your ethnicity. Approximately 90% of Asian-Americans, 79% of African Americans and 95% to 100% of Native Americans are lactose intolerant. Only about 25% of Caucasians, and 5% of people of Norther European descent are lactose intolerant.
Symptoms of lactose intolerance
- Bloating
- Flatulence
- Diarrhea
- Nausea
- Vomiting
- Abdominal pain or cramps
- Gurgling and rumbling sounds from the abdomen
