Day: September 5, 2023

Do Redheads Need Less Vitamin D?

Do Redheads Need Less Vitamin D?

Editor’s Note: This article is a reprint. It was originally published January 27, 2018. Between 1% to 2%, or just 76 to 152 million people, of the global population has red hair. This unique hair color is caused by a mutation of the melanocortin 1 receptor (MC1R), a gene located on chromosome 16. MC1R is…

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