Ringing in the ears, a condition known as "tinnitus," is at best irritating, but it can be so distressing that it may eventually interfere with every day life. Unfortunately, however, there is no cure for tinnitus, although sound therapy or a form of psychological therapy known as "cognitive behavioral therapy" might help. Tinnitus may be caused by a number of factors including a blow to the head or prolonged exposure to a loud noise. Zinc deficiency has also been associated with tinnitus, although the evidence to show taking a zinc supplement can alleviate tinnitus is limited. Get medical advice before taking supplemental zinc.
Properties and Uses
Zinc is an essential trace mineral that plays an important role in wound healing, immune function and blood clotting. It is also vital for proper thyroid function and might play a role in the treatment of several conditions including liver disease, herpes, the common cold and pancreatic conditions. The results of a clinical trial published in "Auris, Nasus, Larynx" in February 2003 suggest that zinc deficiency is involved in the development of tinnitus, particularly in patients with normal hearing.
Clinical Study Findings
Evidence showing that taking zinc supplements can help to alleviate tinnitus symptoms is limited. However, the results of a clinical study published in "Otology and Neurotology" in January 2003 show promise. Specifically, 82 percent of patients who took 50 mg of zinc daily for two months experienced a subjective reduction in the severity of symptoms. The authors note, however, that the results were not statistically significant and add that that it remains to be seen whether a longer duration of treatment has more significant results.
Administration
Zinc is found in a host of foods including crab, poultry, cheese, whole grains, miso, legumes and red meats. It is also available as a dietary supplement in several forms including zinc citrate and zinc glycerate, although the University of Maryland Medical Center notes that zinc sulfate is the cheapest form. Zinc might cause a stomach upset, but you can reduce this effect by taking your supplement with meals. Guidance regarding a suitable dose for tinnitus is lacking, although your doctor or pharmacist may be able to advise you.
Safety Considerations
Taking a zinc supplement might cause side effects including nausea, dizziness, stomach upset, headache, increased sweating and anemia. The University of Maryland Medical Center notes that taking up to 40 mg daily is likely safe, but higher doses may not be. Do not take zinc supplements alongside the diuretic amiloride or quinolone and tetracycline antibiotics as it may reduce their effectiveness.
