TLDR Selenium is essential but can be harmful in excess, and China struggles with balancing its levels for health.
The document discussed the role of selenium (Se) in human health in China, highlighting its necessity in small doses and toxicity in excess. It noted that China had extensive epidemiological data linking Se deficiency to diseases like Keshan Disease, Kashin-Beck Disease, and oesophageal cancer, while excess Se caused hair loss and nail deformation. Despite this, the specific geographic areas at risk and the geochemical factors affecting Se levels were not well-defined, and effective remediation strategies had not been established.
1 citations
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May 2017 in “Asian journal of medical sciences” The dietary supplement significantly improved skin, nails, and hair in older adults.
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June 2023 in “Journal of trace elements in medicine and biology” Eating too much selenium can cause bad breath, hair loss, and nail changes, with harmful effects starting at low daily doses.
11 citations
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January 2004 in “Exogenous dermatology” Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.
October 2023 in “Animal production science” Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.
11 citations
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January 2013 in “Postępy Dermatologii i Alergologii” The conclusion is that a combination of noninvasive treatments and lifestyle changes can improve skin health during menopause.