Caffeine intake and Menière's disease: Is there relationship?

Objectives: Although it is commonly recognized that dietary restrictions may improve the clinical course of Meniere's disease, their effectiveness has not been definitely demonstrated. The aim of this study was to examine whether caffeine consumption could be involved in Meniere's disease.Methods: Cross-sectional, observational, case-control study, comparing caffeine consumption (intake of coffee, tea, kola-type beverages, energy drinks, and chocolate-containing beverages or foods) between patients with Meniere's disease (group A) and patients affected by vertigo with other origins (group B) and/or control subjects (group C).Patients: 180 subjects (72 in group A, 72 in group B, and 36 in group C). Caffeine intake was categorized in four levels: very low (0–25 mg/day), low (26–100 mg/day), moderate (101–300 mg/day), and high (≥301 mg/day). Very low and low intake were considered light consumption, and moderate and high intake, heavy consumption.Results: Mean daily caffeine intake was 175.8 mg. Meniere's di...