Genetic SNP Testing in Functional Medicine

Our genes are not our destiny. However, they can provide insight into how our bodies process nutrients, respond to inflammation, metabolize hormones, detox environmental exposures, and produce neurotransmitters. When interpreted alongside a person’s medical history, symptoms, laboratory testing, and lifestyle, genetic information can help create a more individualized treatment plan.

What Are SNPs?

Single nucleotide polymorphisms, or SNPs (“snips”), are small variations in our DNA sequence.

Some SNPs influence how efficiently certain enzymes function. Rather than causing disease outright, many simply change how well a biological pathway works under different circumstances.

Your Genes are the Blueprint—Not the Outcome

One of the biggest misconceptions about genetics is the belief that finding a particular gene means you’re destined to develop a disease. While some genes work this way this is not how genetic SNPs influence health.

Your genetic SNPs provide the blueprint and your environment determines how much of that blueprint is expressed.

This concept is known as epigenetics.

What Are Epigenetics?

Epigenetics refers to chemical modifications that turn genes “up,” “down,” or “off” without changing the DNA sequence itself. These changes occur throughout life in response to factors such as:

• Nutrition
• Physical activity
• Sleep
• Chronic stress
• Environmental toxin exposure
• Smoking and alcohol
• Gut microbiome health
• Hormonal changes
• Infections
• Aging

In other words, your DNA sequence stays the same, but how your body uses those genes changes throughout your life.

This is incredibly empowering because it means that while we can’t change our genes, we can influence how they’re expressed.

For this reason, genetic testing should never be viewed as predicting your future. Instead, it offers clues that can help explain why your body may have unique needs or be prone to certain conditions.

Lifestyle remains one of the most powerful tools we have for improving health.

How Genetic SNP Testing Works

Most genetic SNP testing is performed using a cheek swab sample. The laboratory analyzes genetic variants across your genome and identifies SNPs that have been associated with differences in nutrient metabolism, detoxification, inflammation, neurotransmitter function, hormone metabolism, and other biological pathways.

Because your genetic code doesn’t change, this test only needs to be performed once. Your results remain relevant throughout your life, although our scientific understanding of individual genes continues to evolve over time.

Why Genetic Testing Can Be Helpful

Genetic testing helps answer questions like:

• Why do I seem unusually sensitive to medications or supplements?
• Why do I require higher amounts of certain nutrients?
• Why does stress affect me so dramatically?
• Why do I struggle with detoxification after environmental exposures?
• Why do I struggle with mental health more than those around me?
• Why do I seem more prone to inflammation?
• Why do I take longer to recover after illness or injury?

While genetics rarely provide the entire answer, they often reveal important pieces of the puzzle.

Nutrient Metabolism

Certain genetic variants may influence how efficiently your body utilizes nutrients such as:

• Folate
• Vitamin B12
• Vitamin D
• Choline
• Omega-3 fatty acids
• Antioxidants

Rather than recommending the same supplements to everyone, we can tailor dosing, forms, and priorities based on your overall clinical picture.

Methylation

Methylation is involved in hundreds of biochemical reactions throughout the body, including DNA repair, detoxification, hormone metabolism, neurotransmitter production, and cardiovascular health.

Certain genetic variants may reduce the efficiency of these pathways, allowing us to individualize nutrition and supplementation when clinically appropriate.

Detoxification

Our bodies are constantly processing environmental chemicals, medications, hormones, and naturally occurring metabolic byproducts.

Genetic variations in detoxification pathways may help explain why some individuals are more susceptible to environmental exposures or benefit from additional support in these pathways.

Inflammation

Inflammation is involved in nearly every chronic health condition.

Certain SNPs may influence how strongly the immune system responds to inflammatory triggers. While lifestyle remains the biggest driver of inflammation, understanding these tendencies can help prioritize nutrition, exercise, stress management, and other interventions.

Hormone Metabolism

Genetic testing may provide insight into how your body metabolizes hormones, including estrogen.

This information can sometimes be helpful when evaluating conditions such as PMS, endometriosis, perimenopause, or hormone replacement therapy.

Neurotransmitters and Mental Health

Genetic differences can influence neurotransmitter production and metabolism, including pathways involving dopamine, serotonin, and norepinephrine.

These findings may help explain why certain individuals respond differently to stress, sleep deprivation, or medications. They can also point to why someone may be more prone to anxiety, depression, ADHD, and other mental health diagnoses.

Cardiometabolic Health

Some SNPs are associated with cholesterol metabolism, homocysteine regulation, oxidative stress, blood pressure, blood clotting, insulin resistance, weight gain, and vascular function.

When combined with laboratory testing and family history, this information can help personalize prevention strategies.

The Most Important Point: Your Genes Are Not Your Destiny

One of the biggest misconceptions about genetic testing is that finding a “bad gene” means developing a disease.

That simply isn’t how genetics work.

For most chronic diseases, genes influence risk—they do not determine outcome.

Lifestyle factors often have a much larger impact on long-term wellness. The goal of functional medicine is to create an environment where your genes function as optimally as possible.

Our Approach

When appropriate, we incorporate genetic SNP testing into a comprehensive functional medicine assessment because it helps move us away from generalized recommendations and toward truly personalized care.

Our goal is to better understand how your body functions at its baseline so we can identify the lifestyle, nutrition, and therapeutic strategies most likely to help you thrive.

When appropriate, we combine genetics with:

• Comprehensive laboratory testing
• Medical history
• Nutrition assessment
• Lifestyle evaluation
• Environmental exposures
• Family history
• Current symptoms
• Functional medicine testing when indicated

This allows us to move beyond generalized wellness advice toward a treatment plan that’s designed specifically for your biology.

No two patients are exactly alike and their healthcare shouldn’t be either.