Tinnitus

Tinnitus: A Nutritional and Natural-Health Reference

1. Definition and Clinical Presentation

Tinnitus can be defined as a sound arising exclusively within one's own neural auditory system, without an external or internal sound that generates it. The term derives from the Latin word tinnire, meaning to ring. It is defined as the ringing, hissing, clicking, or roaring sounds an individual consciously perceives in the absence of an external auditory stimulus.

Sound that only the patient hears is termed subjective tinnitus, while sound that others can hear as well is called objective tinnitus. Tinnitus is a symptom rather than a disease, and therefore reflects an underlying abnormality.

The most common form is described as the conscious perception of a phantom sound perceived in the ear(s) or head in the absence of a known external or internal stimulus, often associated with hearing loss. Tinnitus has been further classified as primary tinnitus, which is either associated with sensorineural hearing loss (SNHL) or is idiopathic, and secondary tinnitus, which is related to other identifiable causes such as an organic origin. Somatic or somatosensory tinnitus is a subtype of subjective tinnitus in which the tinnitus perception is caused by an alteration in somatosensory afference from the cervical spine or temporomandibular area.

Symptoms include ringing, buzzing, roaring, hissing, or whistling in the ears. The noise may be intermittent or continuous. In most cases, only the person with tinnitus can hear it. Tinnitus, usually a benign symptom, can be constant, loud, and annoying to the point that it causes significant emotional distress, poor sleep, less efficient activities of daily living, anxiety, depression, and suicidal ideation or attempts.

2. Epidemiology and Prevalence

Tinnitus affects approximately 10–15% of the adult population, having a severe impact on the daily life of about 0.5–2% of adults and producing effects that can range from annoyance, irritation, and disturbed sleep patterns to panic, stress, anxiety, or depression. It is estimated to occur in 15–20% of the world's population, with 1–3% of cases severely affecting quality of life.

The prevalence of tinnitus has been reported to range from 6.6% to 18.6%, and it increases to 30% in those aged 55 years and older. Despite this high prevalence, only approximately one quarter of adults with tinnitus seek medical help.

3. Body Systems Involved and Pathophysiology

3.1 Peripheral Auditory System

In terms of neurophysiology, tinnitus is the consequence of the brain's response to input deprivation from the auditory periphery. In the healthy auditory system, there is an ordered tonotopic frequency mapping from the auditory periphery (cochlea), through the midbrain, to the auditory cortex. When a region of the cochlea is damaged, the subcortical and cortical projections adjust to this chronic lack of output through plasticity, and the tonotopic organization is altered. In the auditory cortex, the region that corresponds to the area of cochlear damage is termed the lesion projection zone (LPZ).

Hearing loss is present in approximately 60% of people with tinnitus, suggestive of similar pathological processes after harmful noise exposure.

3.2 Central Nervous System

It is now widely accepted that tinnitus mainly derives from activity within the central nervous system. Though tinnitus often originates from a peripheral hearing impairment, it substantially involves the central nervous system. Cellular-level mechanisms include increased neuronal synchrony, neurotransmission changes, and maladaptive plasticity. At the system level, the roles of auditory structures, non-auditory structures, changes in functional connectivity in higher regions, and tinnitus networks have been investigated.

Although tinnitus percept may start at the level of cochlear nerve deafferentation, the neuronal changes in the central auditory system and the neuronal and connectivity changes in non-auditory regions, such as the limbic system, become cardinal in chronic tinnitus generation.

3.3 Non-Auditory Systems

Tinnitus pathophysiology is complex and multifactorial, involving both the auditory and non-auditory systems. Recent theories assume the necessary involvement of extra-auditory brain regions for tinnitus to reach consciousness. Tinnitus engages multiple active, dynamic, and overlapping networks.

The somatosensory and limbic autonomic nervous systems are also deeply involved with the pathogenesis of tinnitus.

3.4 Vascular Involvement

Free radical formation in the cochlea plays a key role in the development of noise-induced hearing loss. The amount, distribution, and time course of free radical formation have been defined, including a clinically significant formation of both reactive oxygen species and reactive nitrogen species 7–10 days after noise exposure. Reduction in cochlear blood flow as a result of free radical formation has also been described.

4. Contributing and Associated Factors

4.1 Auditory and Otological Factors

Using findings from case-control and cohort studies, positive causal associations have been found for various hearing-related factors including unspecified hearing loss, sensorineural hearing loss, occupational noise exposure, ototoxic platinum therapy, and otitis media.

Among various causative diseases, hearing loss following excessive noise exposure is the most common etiology for tinnitus. Accordingly, any disease causing hearing loss may be associated with the generation of tinnitus, and the type of hearing loss (sensorineural or conductive) may not impact on the etiology of tinnitus.

Acute noise exposure, or acoustic trauma, may, depending on the intensity of the exposure, result in reversible or irreversible hearing loss from explosions, loud music, and other short-duration, high-amplitude sounds. Chronic noise exposure can cause various auditory and nonauditory health problems.

4.2 Non-Otological (Systemic) Risk Factors

The origin of tinnitus has been attributed to a peripheral auditory lesion inducing bottom-up changes; however, non-auditory factors can co-exist as well, and can even lie at the origin of tinnitus development. An increasing body of literature focuses on psychological, (neuro)muscular, cardiovascular, and many other influences and their respective associations with tinnitus prevalence.

Evidence has been found for a number of non-otological risk factors including temporomandibular joint disorder, depression, chronic obstructive pulmonary disease, and hyperlipidemia.

The adjusted odds ratio (AOR) of tinnitus was higher for females, those with a smoking history, those reporting less sleep (≤6 h), those with more stress, and those with a history of hyperlipidemia, osteoarthritis, rheumatoid arthritis, asthma, depression, or thyroid disease.

A large Korean cross-sectional population study found that history of hypertension, diabetes mellitus, hyperlipidemia, cerebral stroke, and angina or myocardial infarction were all positively associated with tinnitus.

Severe tinnitus is frequently associated with depression, anxiety, and insomnia.

4.3 Lifestyle Factors

A 2022 systematic review and meta-analysis found that smoking more than four times (OR: 4.11), obesity (OR: 2.30), and leisure noise exposure (OR: 1.62) were significantly associated with tinnitus. There is sufficient evidence that lifestyle determinants — smoking, obesity, and leisure noise exposure — are related to tinnitus.

Negative associations suggesting a possible preventative effect were found for diabetes and high alcohol consumption. No associations were found for low alcohol consumption, body mass index, head injury, heart failure, hypertension, leisure noise exposure, migraine, rheumatoid arthritis, sex, smoking, or stroke in this particular analytical review, illustrating the highly variable and evidence-strength-dependent nature of observed relationships.

Age-related sensorineural degeneration (presbycusis) and excessive noise exposure (occupational or recreational) are leading contributors worldwide. Other important causes include middle-ear disease and chronic ear infections, ototoxic medications, congenital and genetic conditions, head trauma, and certain systemic illnesses such as cardiovascular disease and diabetes.

5. Nutrients, Herbs, and Natural Ingredients

The following section systematically separates traditional use from the available scientific evidence. It is important to note at the outset that, as of the most recent systematic reviews, the Food and Drug Administration (FDA) has not approved any medication or supplement to treat tinnitus. In sum, over-the-counter therapies have not demonstrated reliable or generalizable benefit, and current evidence is insufficient to determine whether they provide clinically meaningful effects.

5.1 Ginkgo biloba

Traditional Use

Ginkgo biloba is one of the world's oldest tree species, with extracts derived from its leaves used in Chinese traditional medicine for millennia to support cognitive function, circulation, and what traditional practitioners characterized as "clearing the senses." Its traditional use extended to conditions presenting as auditory disturbances, dizziness, and ringing sensations in the ears. It was also incorporated into European phytomedicinal practice during the 20th century, particularly in Germany and France, where standardized leaf extracts were developed as prescription or over-the-counter medicines.

Scientific Evidence

One of the frequently prescribed botanical treatments is Ginkgo biloba extract. Randomized, placebo-controlled clinical trials of Ginkgo biloba extract preparations were searched and reviewed systematically. Evidence of efficacy was found for the standardized extract EGb 761® in the treatment of tinnitus from three trials in patients in whom tinnitus was the primary complaint. Supportive evidence came from a further five trials in patients with age-associated cognitive impairment or dementia in whom tinnitus was present as a concomitant symptom. As yet, the efficacy of other ginkgo preparations has not been proven, which does not necessarily indicate ineffectiveness, but may be due to flawed clinical trials.

However, subsequent and higher-quality reviews substantially qualified this positive picture. The Cochrane Review (Hilton 2013), which included four trials with 1,543 total participants, concluded that there was no evidence that Ginkgo biloba was effective in patients with a primary complaint of tinnitus. The limited evidence does not demonstrate that Ginkgo biloba is effective for tinnitus when this is the primary complaint.

In line with the lack of evidence for the effectiveness of Ginkgo biloba and potentially harmful interactions with other drugs, current tinnitus management guidelines recommend against its use for tinnitus treatment. The Multidisciplinary European Guideline for Tinnitus based their recommendation on the results of several systematic reviews, which either concluded that Ginkgo biloba was not effective or highlighted the low methodological rigour of the included trials. Evidence also indicated that Ginkgo biloba can interact with anticoagulant drugs to cause serious bleeding and worsen bleeding risk in patients with underlying clotting disorders. Similarly, the American Academy of Audiology Clinical Practice Guideline recommended against the use of Ginkgo biloba for treating patients with persistent, bothersome tinnitus.

A further meta-analysis applying the GRADE approach concluded that the use of Ginkgo biloba probably does not decrease the severity of tinnitus, and in addition does not reduce its intensity or improve the quality of life of patients.

Evidence strength: Overall weak to negative for tinnitus as the primary complaint. The body of evidence is dominated by heterogeneous trial designs, variable extract preparations, and methodological limitations. Current major clinical guidelines recommend against routine use.

5.2 Zinc

Traditional Use

Zinc has not featured prominently as a specifically named remedy in classical herbal or culinary traditions for tinnitus, though zinc-rich foods such as oysters, red meat, legumes, and seeds have appeared in general dietary recommendations within naturopathic medicine for ear and nervous system health. Interest in zinc supplementation for auditory conditions is largely a product of 20th-century clinical nutrition research rather than a traditional system of use.

Scientific Evidence

A number of reports have suggested that oral zinc supplementation may be effective in the management of tinnitus. Since zinc has a role in cochlear physiology and in the synapses of the auditory system, there is a plausible mechanism of action for this treatment.

Interest in zinc as a potential treatment for tinnitus exists due to the high concentration of zinc in the cochlea, a cavity in the inner ear. However, further research into this offers mixed results.

A 2019 clinical trial examined zinc supplementation in patients with tinnitus associated with noise-induced hearing loss, finding that there were no statistically significant differences in hearing thresholds, speech reception thresholds, or tinnitus frequency and loudness results before and after treatment. However, 17 patients (85%) showed statistically significant improvement of Tinnitus Handicap Inventory (THI) total scores, from 38.3 to 30 (p = 0.024). Zinc oral supplementation elevated serum zinc levels, especially in younger patients.

The most comprehensive evaluation came from the Cochrane systematic review (Person et al., 2016), which concluded: the quality of evidence is very low, and there is no evidence that the use of oral zinc supplementation improves symptoms in adults with tinnitus. The review's primary outcome using validated instruments found that only the study in elderly patients used a validated instrument (Tinnitus Handicap Questionnaire) for the primary outcome and found no significant differences in the proportion of patients reporting tinnitus improvement at four months of follow-up: 5% (5/93) versus 2% (2/94) in the zinc and placebo groups, respectively (risk ratio 2.53, 95% CI 0.50 to 12.70; very low-quality evidence).

A subgroup of subjects with zinc deficiency might have derived some benefit. Cross-sectional data support an association: about 31% of tinnitus patients in one study had low blood zinc levels, and zinc levels tend to drop with age. Researchers found a significant correlation between lower zinc levels and both the severity and perceived loudness of tinnitus.

Evidence strength: Overall weak; very low-quality evidence per the Cochrane review. There is a biologically plausible rationale, and observational data suggest a possible correlation between zinc deficiency and tinnitus severity, but controlled trials do not demonstrate a clear therapeutic effect in unselected tinnitus populations.

5.3 Magnesium

Traditional Use

Magnesium has not been specifically nominated in classical ethnobotanical or traditional medical systems for tinnitus per se. However, magnesium-rich foods — nuts, dark green vegetables, legumes, and whole grains — have longstanding reputations in traditional diets for supporting cardiovascular health and nervous system function, both of which bear relevance to auditory physiology. Modern interest in magnesium for hearing and tinnitus arises from 20th- and 21st-century research rather than an established traditional use system.

Scientific Evidence

Magnesium's proposed mechanism of action in cochlear protection is well characterized at a cellular level. Magnesium deficiency leads to increased permeability of calcium channels in hair cells, with a consequent over-influx of calcium, an increased release of glutamate via exocytosis, and overstimulation of N-methyl-D-aspartate (NMDA) receptors on the auditory nerve fibers.

Human clinical data on magnesium supplementation and noise-induced hearing threshold shift are positive: magnesium provides significant protection against temporary threshold shift, complementing the previous permanent threshold shift human study. A previous study demonstrated the prophylactic effects of magnesium on noise-induced permanent threshold shift in humans. Furthermore, magnesium intake was associated with significantly lower temporary threshold shift, compared with control phases, as reflected by both behavioural and cochlear measures. A correlation was found between blood magnesium levels and temporary threshold shift reduction.

Regarding tinnitus specifically, a Phase 2 clinical trial — a single-arm, open-label study of oral magnesium (532 mg/day) in 26 patients for 3 months — was conducted. Recent studies in noise-induced and idiopathic sensorineural hearing loss have suggested that magnesium supplementation may lessen both hearing loss and the severity of tinnitus in patients. However, this trial design lacked a placebo control, substantially limiting its interpretability.

Animal and combination studies provide additional context. Reduction in cochlear blood flow as a result of free radical formation has been described. Antioxidant agents — vitamins A, C, and E — act in synergy with magnesium to effectively prevent noise-induced trauma. Neither the antioxidant agents nor the magnesium reliably reduced noise-induced hearing loss or sensory cell death with the doses used when delivered alone. In combination, however, they were highly effective in reducing both hearing loss and cell death, even with treatment initiated just 1 hour before noise exposure. This was animal model research and cannot be directly extrapolated to human clinical outcomes.

A 2021 systematic review, as cited in a PMC review on noise-induced hearing loss, concluded that certain micronutrients demonstrated protective effects for noise-induced hearing loss, but results were not consistent.

Evidence strength: Preliminary to moderate for cochlear protection against noise-induced threshold shift; weak for tinnitus treatment specifically, given the absence of well-designed, placebo-controlled trials with tinnitus as a primary endpoint.

5.4 Vitamin B12 (Cobalamin)

Traditional Use

Vitamin B12 is not associated with any specific traditional ethnobotanical use for tinnitus. Its relevance to auditory function emerged from 20th-century clinical and biochemical research on the role of B-vitamins in neurological integrity.

Scientific Evidence

The association between B12 status and tinnitus is largely observational. Research from 1993 found a possible link between low vitamin B12 levels and tinnitus in a sample of 112 people. The researchers found that 47% of people with noise-induced hearing loss and tinnitus had vitamin B12 deficiency, compared with fewer people with noise-induced hearing loss only (27%) or no hearing loss or tinnitus (19%).

A proposed mechanism involves neural damage: low vitamin B12 levels could cause demyelination — damage to the protective myelin coating of nerve fibres. Low levels of vitamin B12 may damage the nerves in the cochlea, a fluid-filled structure in the ear vital for hearing. Deficient vitamin B12 levels may also lead to damage in the tiny blood vessels in the ear.

An early pilot study reported an encouraging finding: when B12-deficient tinnitus patients received intensive B12 therapy, their tinnitus severity scores improved significantly, while patients who were not deficient and those receiving a placebo saw no meaningful change. However, a subsequent controlled study assessing 100 tinnitus patients found contradictory results: of the patients with tinnitus, 63 had low vitamin B12 levels, and 37 had normal vitamin B12 levels. No statistically significant difference was found with the control group levels. No significant change was observed in tinnitus severity after vitamin B12 therapy. Eight of these patients reported some relief in tinnitus on the visual analogue scale (VAS), but the rate of improvement was not significant (p > 0.05). The study concluded that B12 replacement treatment was not effective in these patients with tinnitus.

Evidence strength: Weak and conflicting. Observational data show a higher frequency of B12 deficiency in some tinnitus populations; however, controlled intervention trials do not consistently confirm therapeutic benefit from supplementation. Evidence is insufficient to recommend B12 supplementation for tinnitus in those who are B12-replete.

5.5 Melatonin

Traditional Use

Melatonin, an endogenously synthesized indoleamine produced by the pineal gland, has no traditional ethnobotanical history of use for tinnitus per se. Interest in melatonin as a potential adjunctive agent for tinnitus is entirely a product of late 20th- and early 21st-century biomedical research into its antioxidant, neuroprotective, and sleep-regulating properties.

Scientific Evidence

Melatonin is an endogenously produced indoleamine synchronizing circadian and circannual rhythms. Based on laboratory studies indicating the protective effect of melatonin against cochlear damage induced by acoustic trauma and ototoxic agents, and also clinical studies reporting the ability of melatonin to minimize the severity of tinnitus, melatonin has been suggested as a treatment option for patients with tinnitus.

In vitro, melatonin has demonstrated antioxidative properties, and it has been postulated that these antioxidative properties contribute to the alleviation of tinnitus. However, the melatonin levels used to obtain these findings in vitro are considerably higher than physiological concentrations.

A 2015 review of five clinical studies evaluating melatonin's effectiveness for tinnitus concluded: confirmation of melatonin's clinical effectiveness in the treatment of tinnitus cannot be given in light of the biases observed in the considered evidence. Melatonin seems to improve sleep disturbance linked to tinnitus.

A 2024 systematic review and meta-analysis (Lippi et al.) planned to include interventional, prospective studies using the validated Tinnitus Handicap Inventory (THI) to assess disability. The digital search yielded 104 articles, of which 98 were excluded because they did not meet inclusion criteria. Six studies (n=176 patients) were ultimately included in the analysis. The authors of this review concluded that considering the etiopathogenetic mechanisms of tinnitus and the other therapeutic effects of melatonin (central nervous system modulator and antioxidant), more extensive and multicenter studies are needed.

The broadest overview of over-the-counter treatments for tinnitus (Menon et al., 2026, a systematic review of nine RCTs including 390 adults) found that individual trials evaluating OTC treatments such as melatonin, Ginkgo biloba, magnesium-containing formulations, antioxidants, and multicomponent herbal blends reported improvements in THI scores; however, these isolated findings cannot establish clinical efficacy.

Evidence strength: Preliminary and insufficient. The most consistently reported effect is an improvement in sleep quality associated with tinnitus, rather than a direct reduction in tinnitus severity. Trials are small, heterogeneous, and often methodologically limited. More rigorous, larger trials are needed.

5.6 Antioxidants: Vitamins A, C, and E and N-Acetylcysteine (NAC)

Traditional Use

Vitamins A, C, and E have broad histories of use within naturopathic and dietary traditions as general protective antioxidants. Their application to auditory health is a modern extrapolation rather than a classical traditional indication. N-acetylcysteine (NAC), a synthetic precursor to glutathione, has no traditional ethnobotanical use.

Scientific Evidence

During leisure activities, young people are often exposed to excessive noise levels resulting in increased noise-induced symptoms such as hearing loss, tinnitus, and hyperacusis. Noise-induced tinnitus is often perceived after loud music exposure and provides an important marker for overexposure. As oxidative stress plays an important role in the pathogenesis of noise-induced hearing loss, the use of antioxidants to prevent hearing damage has become the subject of research.

Beta carotene, vitamins B, C, and E, zinc, and magnesium have antioxidant properties — particularly when combined — and have been shown to reduce vasoconstriction, cochlear cell death, and hearing loss in animal models when administered prior to noise exposure.

Human evidence remains limited. A randomized Phase 2 trial of micronutrients (beta carotene, vitamins C and E, and magnesium) administered to young adults prior to exposure to 4 hours of loud music reported that it was not superior to placebo in preventing temporary threshold shift at any frequency level.

A proposed clinical combination of NAC and magnesium has been studied as prophylaxis. A randomized, double-blind, placebo-controlled crossover trial was proposed to assess the effects of a prophylactic combination of N-acetylcysteine (600 mg) and magnesium (200 mg) prior to leisure noise exposure in young adults, with tinnitus loudness as the primary outcome measure.

Evidence strength: Predominantly animal and in vitro data for cochlear antioxidant protection. Human RCT data are limited and largely negative or inconclusive for tinnitus prevention or treatment. The combination of antioxidants with magnesium shows more promise in preclinical models than when components are used alone, but this has not yet been adequately confirmed in powered human clinical trials specifically targeting tinnitus.

5.7 Folic Acid

Traditional Use

Folic acid (vitamin B9) has no traditional ethnobotanical use for tinnitus. Its relevance emerged from research on B-vitamin roles in homocysteine metabolism and neural protection.

Scientific Evidence

Animal research suggests a pathophysiological link: folic acid deficiency induces premature hearing loss through mechanisms involving cochlear oxidative stress and impairment of homocysteine metabolism. The clinical significance of this finding for human tinnitus has not been confirmed in adequately powered, controlled human studies.

Evidence strength: Preliminary, based primarily on animal research. Human clinical evidence is absent for tinnitus specifically.

6. Dietary Factors Discussed in the Literature

6.1 Overall Dietary Pattern

The potential for nutrition to impact outcomes in most chronic conditions is widely accepted; however, the influence of dietary choices on tinnitus remains inadequately understood at both group and individual levels. A hospital-based Italian case-control study found that the variety of food consumed decreased the risk of tinnitus (OR for at least 20 vs. fewer than 16 different food items, 0.47; 95% CI, 0.24–0.90). These findings highlight the importance of dietary variety in tinnitus onset and confirm a potential inverse association of protein-rich food and caffeine with the incidence of tinnitus.

US data from the Blue Mountains Hearing Study found that lower intake of fruit fibre and cereal fibre were significantly associated with a 55–65% increased risk of developing tinnitus over 10 years.

Cross-sectional UK Biobank data indicated that a healthier diet (indexed by the Healthy Eating Index score) was associated with reduced odds of reported persistent tinnitus.

6.2 Caffeine

Caffeine's relationship with tinnitus has been extensively studied with notably inconsistent results. A large online survey of 5,017 tinnitus sufferers found that caffeine intake was associated with a negative effect on tinnitus severity in 16.2% of participants, but a positive effect in only 0.4%, and these effects were most commonly mild.

A systematic review of four epidemiological studies (two prospective cohorts and two cross-sectional studies) concluded: one study found no association between caffeine consumption and the incidence of tinnitus, while an inverse relationship was reported by two population-based studies — meaning that higher caffeine intake was associated with a lower incidence of tinnitus in those studies. One systematic review evaluating the effects of caffeine consumption on tinnitus concluded that increased caffeine intake might reduce the risk of developing tinnitus in persons without tinnitus; however, in persons with pre-existing tinnitus, a reduction in caffeine consumption could be beneficial. The proposed mechanisms through which caffeine might worsen tinnitus in susceptible individuals include exacerbating effects on blood pressure, vasoconstriction within the cochlea, alteration of endolymph composition, and stimulatory effects on the central nervous system, which might interfere with central auditory processing. Despite the widespread and persistent nature of these theories, high-quality studies have failed to identify the predicted effects.

6.3 Alcohol

Alcohol was most likely to influence tinnitus severity among the dietary items studied, reporting a negative effect in 13.3% and a positive effect in 2.7% of participants, with effects most commonly mild. Overall, findings regarding alcohol consumption and its relationship to tinnitus are mixed. The 2022 meta-analysis of analytical observational studies noted a negative association — suggesting a possible preventative effect — for high alcohol consumption, but this counterintuitive finding derived from a very small number of pooled studies and must be interpreted with extreme caution given the well-established harms of high alcohol intake on overall health.

6.4 Sodium (Salt)

Salt intake was reported to have a negative effect on tinnitus severity in 9.9% of participants but a positive effect in only 0.1%. Salt restriction is a well-established clinical recommendation for Ménière's disease — a condition in which tinnitus is often a prominent symptom — due to its effects on endolymphatic pressure. However, a Cochrane review concluded that there is no evidence from randomised controlled trials about the restriction of salt, caffeine, or alcohol intake in patients with Ménière's disease or syndrome. The overall evidence for dietary sodium restriction specifically improving tinnitus is indirect and not confirmed by controlled trials.

6.5 Overall Dietary Modification as a Primary Strategy

Results do not support dietary modification as a primary treatment strategy for chronic tinnitus in the general population, though clinically meaningful effects might be observable in certain individuals. Though the body of evidence suggesting that healthful eating might be of benefit in terms of hearing and tinnitus outcomes is slowly accumulating, few high-quality trials have been conducted to date, and reported effects have generally been weak. Furthermore, concerning tinnitus, the majority of studies have focused on the risk of developing tinnitus, whereas, for patients with chronic tinnitus, nutrition-based treatment recommendations to lessen already present tinnitus symptoms are the desired target.

7. Sleep and Lifestyle Factors

Sleep disturbances are prevalent among individuals with tinnitus, as silence can often accentuate tinnitus symptoms at bedtime. To mitigate tinnitus during nighttime, experts recommend employing white noise or other soothing sounds to mask the tinnitus sound, elevating the pillow to alleviate congestion, and establishing a consistent bedtime routine that incorporates stress-reducing activities.

Epidemiological data consistently associate short sleep duration with tinnitus: the adjusted odds ratio of tinnitus was higher for those reporting less sleep (≤6 hours). The direction of causality is unclear — tinnitus may disrupt sleep, and sleep deprivation may in turn amplify tinnitus perception.

The relationship between stress and tinnitus is clinically recognized. The associations of hearing loss, noise exposure, stress, and depression with tinnitus are clear, whereas the roles of sex, alcohol consumption, smoking status, educational level, and income level differ among studies.

8. Evidence Gaps and the State of the Field

Tinnitus remains a major challenge to physicians because its pathophysiology is poorly understood and there are few management options to offer patients. Despite many articles being published on its pathophysiology, diagnosis, and treatment, the precise generation, measurement, and remedy of tinnitus remain to be completely elucidated.

Findings from systematic reviews show that tinnitus is related to multiple exposures; however, for most of them, there are insufficient data to conclude a causal relationship. Knowledge of risk factors is crucial for understanding tinnitus etiology, as it could provide insights for pathophysiological mechanisms, contribute to improved tinnitus management, and individualize treatments based on the underlying cause rather than alleviating the tinnitus percept alone.

The most recent comprehensive systematic review of over-the-counter treatments (Menon et al., 2026) underscored that the field of tinnitus treatment research would benefit from a unified study paradigm to consolidate evidence, guide clinical decision making, and ultimately improve outcomes for the millions affected by this complex condition.

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