topicL-Theanine Anxiety Randomized Trial
claimHowever, tinnitus is a heterogeneous condition with patients presenting a variety of overlapping symptoms and phenotypes related to the auditory component and the associated suffering characterized by psychological distress, sleep problems, concentration difficulties, behavioral changes, and functional impairment [,].
evidence level3
citationCepeda Uceta Massiel (2026)
sourceBenefits of a Natural Dietary Supplement for Tinnitus: An Observational Prospective Exploratory Study
topicL-Theanine Anxiety Randomized Trial
claimIn a systematic review based on five randomized controlled trials (RCTs), it was concluded that a standardizedextract is an evidence-based treatment option in tinnitus [].
evidence level3
citationCepeda Uceta Massiel (2026)
sourceBenefits of a Natural Dietary Supplement for Tinnitus: An Observational Prospective Exploratory Study
topicL-Theanine Anxiety Randomized Trial
claimReduced intake of vitamins B12, B6 and B3 may be associated with tinnitus-related annoyance and different studies have shown improvement in symptoms after B-complex vitamins supplementation [,].
evidence level3
citationCepeda Uceta Massiel (2026)
sourceBenefits of a Natural Dietary Supplement for Tinnitus: An Observational Prospective Exploratory Study
topicL-Theanine Anxiety Randomized Trial
claim1 2 3 4 5 6 7 8 Tinnitus, the perception of sound in the absence of an outside source, is a complex multifactorial problem that affects more than 740 million adults globally [] and can be considered a disability when it substantially and persistently impairs daily activities and quality of life [].
evidence level3
citationCepeda Uceta Massiel (2026)
sourceBenefits of a Natural Dietary Supplement for Tinnitus: An Observational Prospective Exploratory Study