Selenium, in excess, can straighten hair, diminish nails and prove toxic

First, my hair's texture changed from wavy to straight. Then my fingernails began to deteriorate. Finally, I read in your column that too much selenium in the diet could affect hair and nails adversely. At the time, I was taking a supplement that contained selenium along with the lecithin I wanted. I immediately switched to a lecithin-only supplement. After about six months, my nails began to recover. And my hair has become wavy again.

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