Single Nucleotide Polymorphisms (SNPs) are the most common type of genetic mutation that occurs in humans, representing a difference in just a single nucleotide (a single building block of DNA). Testing for SNPs is an increasingly important part of nutritional and preventive medicine because it helps to identify a person’s relative risk for certain diseases and how they might uniquely respond to their environment.
Why Test for SNPs?
Pharmacogenomics: This predicts how an individual will metabolize and respond to specific drugs, primarily by looking at SNPs in the cytochrome P450 (CYP) enzyme system in the liver.
Nutrigenomics: This studies how your genetic variation affects your response to different dietary nutrients and lifestyle factors. For example, knowing your SNPs can help you customize your diet to mitigate chronic disease risks.
Raw genetic data can often be overwhelming, providing confusing or conflicting recommendations (e.g., “take vitamin X for SNP A, but avoid vitamin X for SNP B”). Your provider can help you make sense of your results and give you personalized recommendations.
To know if a SNP is actually affecting your health (its “phenotypic expression”), genetic testing must be paired with functional metabolic testing.
Ultimately, knowing your SNPs is just the first step. You must verify those findings with functional labs to determine if specific dietary interventions or supplements are truly necessary.
Disclaimer: This information is provided for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult your primary care provider or specialist before making any changes to your health care plan. The content presented here is intended to complement, not replace, the guidance of your qualified health care professionals.
Leave a Reply