Low Population Selenium Status Is Associated With Increased Prevalence of Thyroid Disease

Epidemiological studies have supported the premise that an adequate selenium intake is essential for thyroid gland function. The objective was to investigate whether the prevalence of thyroid disease differed in two areas that were similar, except for very different soil/crop selenium concentrations. Cross-sectional observational study. The setting was two counties of Shaanxi Province, China, here defined as adequate- and low-selenium. A total...