Blood Lead, Cadmium Tied to Higher Tinnitus Risk - Summary - MDSpire
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Blood Lead, Cadmium Tied to Higher Tinnitus Risk

Large NHANES analysis links higher blood lead and cadmium levels with tinnitus prevalence in US adults.

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A cross-sectional analysis of 4,950 US adults revealed that elevated blood lead and cadmium levels are linked to a higher risk of tinnitus. The study, utilizing National Health and Nutrition Examination Survey data from 2012 to 2018, found that participants in the highest blood lead quartile had 1.63 times greater odds of experiencing tinnitus compared to those in the lowest quartile. Though blood cadmium showed a significant risk only in the highest quartile, other metals like mercury and selenium demonstrated complex relationships with tinnitus. The research suggests biological mechanisms for these associations, emphasizing the need for future longitudinal studies to explore causal pathways.

Original Source(s)

Blood Lead, Cadmium Tied to Higher Tinnitus Risk

  • by Kerri Miller

  • April 8, 2026

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