You Have a Liver, But What If Your Genes Disagree? Understanding Detoxification SNPs

By Britt Larson, Functional Practitioner, January 13, 2025

A Possible Wrench Thrown Into The Mix

Have you ever heard someone dismiss the idea of supporting your body’s detoxification by saying, “You already have a liver that detoxes for you”? While it’s true that our bodies are equipped with detoxification systems, what happens if your genetics throw a wrench in the works? Enter detoxification SNPs (single nucleotide polymorphisms) — genetic variations that can impact how effectively your body processes toxins.

Our bodies evolved in environments vastly different from the one we live in today. Modern life brings increasing pollution, pesticides in our food, endocrine disruptors in skincare products and plastic bottles, and countless other challenges. These environmental factors can overwhelm even the most efficient detoxification systems, especially if genetic SNPs already compromise them.

Let’s break down what detoxification SNPs are, the symptoms you might experience if these processes aren’t functioning optimally, and actionable solutions to support your body.


What Are Detoxification SNPs?

Detoxification SNPs are genetic variants that affect how your body metabolizes and eliminates toxins, including environmental chemicals, medications, and even byproducts of normal metabolism. These SNPs often involve key enzymes in detoxification pathways. Some of the most commonly discussed detoxification SNPs include:

  1. GSTM1 and GSTT1: Involved in phase II detoxification (glutathione conjugation). Missing or reduced function can lead to difficulty clearing toxins and increased oxidative stress.
  2. CYP1A1 and CYP1B1: Part of phase I detoxification (activating toxins for elimination). Variants can result in increased activation of toxins without efficient clearance.
  3. COMT: Breaks down catecholamines (stress hormones) and certain estrogens. Variants can lead to estrogen dominance and mood instability.
  4. SOD2: Produces superoxide dismutase, an enzyme that combats oxidative stress. SNPs may increase free radical damage.
  5. NQO1: Important for detoxifying quinones and preventing oxidative damage. Variants can increase cancer risk.
  6. MTHFR: While primarily known for methylation, it also plays a role in detoxification by supporting glutathione production.

Symptoms That Could Indicate Detoxification Issues

If your detoxification pathways are compromised, you might experience symptoms such as:

  • Fatigue or low energy
  • Frequent headaches
  • Hormonal imbalances (e.g., PMS, estrogen dominance)
  • Sensitivity to chemicals, fragrances, or alcohol
  • Digestive issues like bloating or constipation
  • Skin problems such as acne or rashes
  • Brain fog, mood swings, or anxiety
  • Persistent inflammation or joint pain

Without proper detoxification, your body may struggle to eliminate toxins effectively, leading to accumulation and systemic effects. Over time, this can increase the risk of chronic illnesses, including hormonal imbalances, neurological conditions, and autoimmune disorders. Optimizing your detoxification pathways is crucial for maintaining overall health and resilience.


What Can You Do?

1. Listen to Your Body

First and foremost, trust your instincts. If you feel “off,” don’t let anyone dismiss your concerns. Advocate for yourself and seek more information, whether through testing, working with a functional health practitioner, or exploring lifestyle adjustments.

2. Get Tested

Genetic testing can identify SNPs that may impact detoxification. Instead of using platforms like 23andMe or AncestryDNA, which may pose privacy concerns, consider alternatives such as:

  • Functional Health Labs: Seek out professional-grade testing through a functional medicine practitioner.
  • Specific Detoxification Testing: Includes urine organic acids, liver function tests, and markers of oxidative stress.

3. Lifestyle Modifications

Support your detoxification pathways by optimizing your environment and daily habits:

  • Reduce toxin exposure: Choose organic foods (check the Dirty Dozen and Clean Fifteen!), use natural cleaning products, and filter your water and air.
  • Sweat regularly: Exercise and sauna therapy can help eliminate toxins through your skin.
  • Prioritize sleep: Detoxification ramps up during sleep, especially in the liver and brain.
  • Stay hydrated: Proper hydration supports kidney function and toxin elimination.

4. Food Recommendations

Nutrient-dense foods can provide the building blocks for detoxification. Here are some to include and why:

  • Cruciferous vegetables (broccoli, Brussels sprouts, kale): Contain sulforaphane, which supports phase II detoxification.
  • Citrus fruits: Rich in vitamin C, an antioxidant that helps neutralize free radicals.
  • Beets: High in betaine, which supports methylation and liver function.
  • Garlic and onions: Contain sulfur compounds that aid glutathione production.
  • Berries: Packed with antioxidants to reduce oxidative stress.
  • Herbs and spices (turmeric, cilantro, parsley): Support liver health and metal detoxification.
Healthy lifestyle concept. Eat fruits and vegetables and workout

5. Supplement Recommendations

Supplements can fill gaps and support compromised detoxification pathways. Always consult a professional before starting new supplements. Here are some recommendations:

  • Glutathione (Setria or liposomal form): 500-1,000 mg daily.
  • NAC (N-acetylcysteine): Precursor to glutathione; 600-1,200 mg daily.
  • Milk thistle: Supports liver regeneration; 150-300 mg daily.
  • Activated B vitamins (including methylfolate and methylcobalamin): Dosages depend on SNPs.
  • Magnesium glycinate or citrate (heads up: citrate helps with motility!): Supports over 300 enzymatic reactions; 300-400 mg daily.
  • DIM (diindolylmethane): Helps metabolize estrogen; 100-200 mg daily.
  • Omega-3 fatty acids: Reduce inflammation; 1,000-2,000 mg EPA/DHA daily.

6. Mindset Matters

Take an empowered approach to your health. You’re not “broken” because of your genes. Lifestyle changes and targeted support can significantly improve how your body functions, even with detoxification SNPs.


Check List

If you suspect detoxification issues, here’s a quick checklist:

  1. Test for genetic SNPs and functional markers related to detoxification.
  2. Clean up your environment to reduce toxin exposure.
  3. Focus on detox-friendly foods like cruciferous vegetables, citrus, and garlic.
  4. Incorporate supplements such as glutathione, NAC, and milk thistle as needed.
  5. Adopt lifestyle habits like sweating, sleeping well, and staying hydrated.
  6. Seek professional guidance to create a tailored plan.

Final Thoughts

Your body is equipped with powerful detoxification tools, but genetic SNPs can sometimes create roadblocks. By understanding your unique needs and making targeted changes, you can optimize your detox pathways and feel your best. Never let anyone gaslight you into ignoring your health concerns. You deserve to feel great, and solutions are within reach.

Your Personalized Detox Journey Starts Here

If this resonates with you and you suspect detoxification SNPs may be impacting your health, take the first step toward optimizing your well-being. Work with a functional health practitioner who understands the nuances of genetics and detoxification, and start making small, consistent changes to support your body. Share this article with someone who might benefit from it, and let’s spread the knowledge together!

Yours in Health,

Britt Larson, Functional Nutritional & Medicinal Practitioner

@coachmusclenugget @limitlesshealthandperformance

www.limitlessphysiques.com

Disclaimer

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making changes to your health routine or starting new supplements.

Citations:

  1. Linhart, H. G., et al. “Detoxification enzymes and oxidative stress in human health and disease.” Toxicology and Applied Pharmacology, 2014.
  2. Pall, M. L. “Elevated, sustained peroxynitrite levels as the cause of chronic fatigue syndrome.” Medical Hypotheses, 2000.
  3. Butterfield, D. A., et al. “Redox proteomics identification of oxidatively modified brain proteins in mild cognitive impairment.” Antioxidants & Redox Signaling, 2006.
  4. Clinical studies on NAC and glutathione supplementation from PubMed Central.
  5. Functional detoxification testing protocols from The Institute for Functional Medicine.