126 citations
,
November 1987 in “The Journal of Pediatrics” Selenium deficiency can cause skin and hair color loss, muscle weakness, and blood cell changes, but these improve with selenium supplements.
January 2005 in “Zhonghua xingwei yixue yu naokexue zazhi” Selenium and iodine deficiencies cause delayed growth and abnormal neural behavior in rats.
6 citations
,
March 2011 in “Experimental Dermatology” Too much or too little selenium in the diet can cause hair loss and graying in mice.
79 citations
,
January 2017 in “Dermatology practical & conceptual” Correcting nutrient deficiencies may help with hair loss, but the benefits of supplements without a deficiency are uncertain and could be harmful.
21 citations
,
June 1991 in “Journal of Inherited Metabolic Disease” Selenium deficiency caused symptoms in a child, which improved with selenium supplements.