LPL rs326: Understanding Your Lipoprotein Lipase Variant
The rs326 variant is a common genetic change located within the LPL gene, which provides instructions for the lipoprotein lipase enzyme. Research has explored its potential associations with lipid levels, such as HDL cholesterol and triglycerides, as well as its role in obesity management.
What each genotype means
Lower HDL cholesterol risk
Research indicates that the A allele is associated with lower levels of high-density lipoprotein (HDL) cholesterol in the blood. Studies have observed this association across multiple populations, including Caucasian and African-American cohorts. This variant may also influence LPL expression in adipose tissue and is being studied for its potential role in obesity and non-alcoholic fatty liver disease risk.
This genotype is common, with the A allele appearing at a frequency of approximately 35% in many studied populations.
Intermediate HDL cholesterol profile
Carrying one copy of the A allele is associated with a similar trend toward lower HDL cholesterol levels compared to those without the A allele. Because this variant is studied in the context of metabolic health, individuals may wish to discuss their lipid profiles and lifestyle factors with a healthcare provider. The impact of this genotype on overall health is considered moderate and is often evaluated alongside other genetic and environmental factors.
This is a common heterozygous genotype found frequently across diverse ancestral groups.
Typical HDL cholesterol profile
The G allele is generally considered the reference or common allele in this context and is associated with a typical or normal risk profile for HDL cholesterol levels relative to the A allele. This genotype does not carry the specific association with lower HDL levels observed in carriers of the A allele. As with all genetic findings, this should be viewed as one part of a broader health picture including diet and lifestyle.
This is a common genotype, representing the most frequent allele combination in many global populations.
What is the rs326 Variant?
The rs326 variant is a single nucleotide polymorphism (SNP) located on chromosome 8 within the LPL gene. In genetics, a SNP represents a variation at a single position in the DNA sequence among individuals. This specific variant is widely studied because it sits within a gene critical for how the body processes fats. Because it is a common variant, many people carry one or two copies of the alternative allele. Scientists track these variations to understand how subtle differences in our genetic code might influence physiological traits, such as how efficiently our bodies break down dietary fats or maintain healthy cholesterol levels. It is important to note that while rs326 is a well-documented marker, it is just one of many variations within the LPL gene that researchers investigate to build a clearer picture of human metabolic health.
The Role of the LPL Gene
The LPL gene is responsible for producing the lipoprotein lipase enzyme. This enzyme acts like a molecular gatekeeper, primarily found on the surface of cells lining the capillaries in muscle and adipose (fat) tissue. Its main job is to break down triglycerides—a type of fat found in the blood—into smaller components that cells can use for energy or storage. When the LPL enzyme functions optimally, it helps maintain a healthy balance of fats in the bloodstream. If the gene produces an enzyme with altered activity, it can influence how quickly fats are cleared from the blood. Because this process is central to energy metabolism, variations in the LPL gene are frequently examined in studies related to cardiovascular health, obesity, and metabolic syndrome. Understanding this gene helps researchers explain why individuals may respond differently to dietary interventions or lifestyle changes regarding fat intake.
Research Associations and Evidence
Scientific research has investigated the association between rs326 and various metabolic traits, including HDL cholesterol levels, triglyceride levels, and body mass index (BMI). Some studies have suggested that the A allele of rs326 may be linked to lower levels of HDL cholesterol, often referred to as 'good' cholesterol. Other research has explored whether this variant influences the risk of obesity or coronary heart disease, with some findings indicating a potential correlation in specific population groups. However, the evidence strength for these associations is considered moderate. Genetic associations are complex, and the impact of a single SNP like rs326 is often influenced by a combination of other genetic factors, diet, and environmental lifestyle choices. Because results can vary between different ethnic groups and study designs, it is essential to view these findings as statistical observations rather than definitive predictors of an individual's health outcomes.
What You Can and Cannot Do
Information about your rs326 genotype is a tool for educational insight, not a medical diagnosis. You cannot use this information to predict your future health or to diagnose conditions like obesity or hyperlipidemia. Genetic variants are only one piece of a much larger puzzle that includes your overall diet, physical activity, and medical history. If you are concerned about your cholesterol levels, triglyceride counts, or weight management, the most effective step is to consult with a healthcare professional or a registered dietitian. They can interpret your clinical blood work and provide personalized guidance based on your actual physiological markers. Do not make changes to your diet or lifestyle based solely on a genetic report. Always discuss any health-related concerns or questions about your genetic data with your doctor, who can help you integrate this information into a comprehensive and safe wellness plan.
How common is this variant?
The rs326 variant is common across many populations, with a global minor allele frequency reported at approximately 0.3457 in major databases.
Frequently asked questions
Is rs326 a cause of obesity?
No, rs326 is not a direct cause of obesity. It is a genetic variant that researchers study for its potential association with metabolic traits, but obesity is a complex condition influenced by many genetic, environmental, and lifestyle factors.
Should I change my diet based on my rs326 genotype?
You should not change your diet based solely on a genetic test result. Always consult with a healthcare provider or a registered dietitian who can evaluate your overall health and provide evidence-based nutritional advice.
Does this variant mean I have high cholesterol?
No, having a specific genotype for rs326 does not mean you have high cholesterol. Clinical blood tests are the only way to determine your actual cholesterol levels, and you should discuss those results with your doctor.
Where can I find more information on LPL?
You can find reliable information about the LPL gene and its function on official resources like MedlinePlus Genetics or the National Center for Biotechnology Information (NCBI) website.
Sources & further reading
Educational information only, last refreshed 9/19/2026. Not medical advice — these associations describe population statistics, not individual predictions.
Curious what your genotype is for rs326?
Upload a raw DNA file from 23andMe, AncestryDNA, MyHeritage, or FamilyTreeDNA and see this variant — plus thousands more — interpreted in your full report.
Get my report — $29Related variants in LPL
Missense variant in the lipoprotein lipase gene (Asn291Ser) associated with altered lipid profiles, increased risk of ischemic heart disease, and multivariate aging-related healthspan traits.
A functional gain-of-function variant in the LPL gene that disrupts a microRNA-410 seed site, leading to increased LPL expression, lower plasma triglycerides, higher HDL cholesterol, and potential protective effects against hepatocellular carcinoma in specific clinical contexts.
Lipoprotein lipase S447X (often referred to as S474X in older literature) variant affects triglyceride clearance.
A common variant in the LPL gene that helps lower triglyceride levels and provides protection against heart disease.