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Last reviewed: May 12, 2026 Last updated: May 12, 2026

Written by: Jay Hastings , CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

NFKB1 and Hearing Health: What Your rs3774937 Genotype Means

Hearing loss is common and can have a major effect on communication and quality of life. Age, noise exposure, infections, and medical conditions like Meniere’s disease all influence hearing over time. The NFKB1 gene helps regulate immune responses and inflammation, processes that are important for the health of inner ear structures. Variations at the rs3774937 position in NFKB1 have been linked to differences in how quickly hearing loss progresses in people who develop Meniere’s disease, particularly when only one ear is affected.

This article explains how different rs3774937 genotypes relate to hearing loss risk, and gives practical, evidence-informed lifestyle, diet, supplement, and monitoring suggestions to support ear health as you age. PlexusDx does not provide medical advice. Always consult your healthcare provider before making changes to medications, supplements, or your care plan.

How NFKB1 Can Influence Hearing

NFKB1 is part of a signaling system that controls inflammation and immune responses. In the inner ear, too much inflammation or impaired immune regulation can contribute to damage of delicate sensory cells and fluid balance disturbances. Inflammatory changes are thought to play a role in the progression of hearing loss in conditions like Meniere’s disease. The rs3774937 variant does not cause Meniere’s disease, but certain alleles have been associated with a faster rate of hearing deterioration once Meniere’s is present.

2 effect alleles (CC genotype)

If you have the CC genotype at rs3774937, you carry two copies of the effect allele. Research associates this genotype with faster progression to hearing loss in people with Meniere’s disease, particularly when only one ear is affected. This does not mean you will develop Meniere’s disease or rapid hearing loss, but it suggests a greater susceptibility to accelerated decline if the condition occurs.

Consider focusing on strategies that reduce inner ear inflammation and protect hearing so you can slow potential progression:

  • Anti-inflammatory eating pattern rich in colorful fruits and vegetables, oily fish, nuts, seeds, whole grains, and lean proteins.
  • Regular omega-3 supplementation or increased oily fish consumption to support vascular and inner ear health. Typical supplemental doses range from 500 to 1000 mg combined EPA and DHA daily, but follow your provider's guidance.
  • Antioxidant support through vitamins C and E from food or multivitamin supplementation if indicated.
  • Consider magnesium from diet or supplements, as it may help protect against noise-related hearing damage. Dietary sources include leafy greens, nuts, seeds, and legumes.
  • Strict hearing protection around loud environments: earplugs or earmuffs and limiting exposure time.
  • Stress management techniques such as mindfulness, cognitive behavioral strategies, or regular moderate exercise to reduce systemic inflammation and symptom burden.
  • Maintain healthy sleep habits and control cardiovascular risk factors like blood pressure and blood sugar that affect inner ear circulation.
  • Schedule regular hearing assessments and share your genotype information with your ENT or audiologist so monitoring can be tailored.
1 effect allele (CT genotype)

If you have the CT genotype, you carry one copy of the effect allele. This genotype is associated with likely faster progression to hearing loss in people with Meniere’s disease, particularly unilateral cases. It does not cause Meniere’s disease but may influence the rate of decline once the condition develops.

Practical steps to consider include:

  • Adopt an anti-inflammatory diet emphasizing vegetables, fruit, whole grains, lean protein, and sources of healthy fat like olive oil, avocados, and fatty fish.
  • Discuss omega-3 supplementation with your provider. Dietary sources such as salmon, sardines, and mackerel are beneficial.
  • Support with antioxidants through a varied diet rich in berries, leafy greens, and colorful vegetables. Consider a routine multivitamin if dietary intake is limited.
  • Magnesium-rich foods can help protect against noise-related damage and support nerve function.
  • Prioritize hearing protection in noisy settings and avoid unnecessary loud exposures.
  • Manage stress, sleep, and cardiovascular health to support inner ear blood flow and reduce inflammatory triggers.
  • Ask your clinician about a personalized hearing monitoring schedule and inform them of your genotype to refine follow up plans.
0 effect alleles (TT genotype)

If you have the TT genotype, you carry two copies of the non-effect allele. This is the most common genotype and is associated with the typical progression of hearing loss in Meniere’s disease. Your genetic profile does not include the C variant linked to faster progression in unilateral Meniere’s cases. That said, standard preventive measures remain important for preserving hearing as you age.

Recommended measures include:

  • Maintain an anti-inflammatory dietary pattern and stay hydrated to support inner ear homeostasis.
  • Protect ears from loud noise and limit exposure duration.
  • Keep cardiovascular risk factors such as blood pressure, cholesterol, and blood sugar under control.
  • Practice regular stress-reduction strategies and prioritize consistent sleep.
  • Regular hearing check-ups, particularly if you experience tinnitus, ear fullness, vertigo, or changes in hearing.

Diet, Supplements, and Lifestyle: Practical Tips

  • Diet: Emphasize whole foods. Aim for a variety of vegetables and fruits daily, include fatty fish 2 to 3 times per week, choose whole grains, and use healthy fats like olive oil. Reduce processed foods high in added sugars and trans fats that promote inflammation.
  • Supplements: Talk with your provider before starting supplements. Common considerations for ear and neural health include omega-3 fish oil, magnesium, and general antioxidant support through a daily multivitamin if diet is inadequate.
  • Noise protection: Use earplugs or earmuffs in noisy work or recreational settings. Keep personal audio devices at safe volume levels and follow the 60/60 rule: 60 percent volume for no more than 60 minutes at a time.
  • Stress and sleep: Regular physical activity, mindfulness or meditation practices, and good sleep hygiene reduce systemic inflammation and may help manage symptoms like tinnitus or vertigo.
  • Cardiovascular health: Control blood pressure, lipid levels, and blood sugar. Small vessel circulation matters for inner ear function.

Monitoring and Tests to Discuss With Your Provider

  • Baseline and periodic audiograms to track hearing thresholds over time.
  • Vestibular testing if you experience dizziness or balance problems.
  • Blood work as indicated to assess metabolic and inflammatory markers, lipid profile, and blood sugar control.
  • ENT or audiology referral for any new, unexplained hearing changes, fullness, or recurrent vertigo.

PlexusDx provides educational information about genetic predispositions. This content is not medical advice. Always consult your healthcare provider before making decisions about medical care, testing, or treatments. Share your genotype information with your clinician so it can be incorporated into a personalized care plan.

If this genetic variant is present in your PlexusDx results, the following tests and reports are commonly used to explore it further:

🧬 Genetic Tests:

🧪 Blood Tests:

📄 Genetic Report:

Frequently Asked Questions About HEARING LOSS and NFKB1 rs3774937

What does the NFKB1 rs3774937 variant mean for hearing health?

The NFKB1 gene helps regulate immune responses and inflammation, which can affect delicate inner ear structures. The rs3774937 variant has been associated with differences in how quickly hearing loss may progress in people who develop Meniere’s disease, especially when only one ear is affected. It does not cause Meniere’s disease by itself, but it may influence decline rate once the condition occurs.

How do rs3774937 genotypes (CC, CT, TT) differ in risk for Meniere’s-related hearing loss?

CC genotype (2 effect alleles) is associated with faster progression to hearing loss in people with Meniere’s disease, particularly unilateral cases. CT genotype (1 effect allele) is also linked with likely faster progression in similar situations. TT genotype (0 effect alleles) is associated with typical progression of hearing loss in Meniere’s disease and lacks the C variant associated with faster unilateral decline. Any individual outcome can vary, and these associations do not guarantee what will happen.

What lifestyle and monitoring steps are recommended if I have an effect allele at rs3774937?

Consider strategies that reduce inflammation and protect inner ear function: follow an anti-inflammatory diet (colorful fruits/vegetables, whole grains, lean proteins, and oily fish), discuss omega-3 (EPA/DHA) with your provider (often 500–1000 mg/day combined EPA+DHA as a starting reference), and ask about antioxidant support and magnesium. Use strict hearing protection in loud environments and limit personal audio volume (60/60 rule). Manage stress and prioritize sleep, and control cardiovascular risk factors (blood pressure, blood sugar, lipids). Also discuss personalized monitoring such as baseline and periodic audiograms, vestibular testing if dizziness occurs, and blood work as indicated.

What tests can help me learn more about HEARING LOSS and NFKB1 rs3774937?

The Longevity and Healthy Aging Genetic Test delivers over 200 genetic insights related to cellular repair, inflammation balance, metabolism, cardiometabolic health, and aging pathways. The Healthy Aging Genetic Report translates your results into personalized, actionable guidance. Your healthcare provider can also recommend targeted blood tests based on your specific pathway results and health history to complement your genetic insights with current biomarker data.

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.