Over-the-counter supplements present 'substantial risk' for the uninformed

Vitamin D capsules.
(Image credit: pinkomelet/ iStock)

When it comes to taking extra doses of vitamins, the risks might outweigh the rewards.

A 54-year-old Canadian man found this out firsthand when he discovered he had significant kidney damage — not due to disease, but due to the high doses of vitamin D he'd been taking daily for the past two years, Science Daily reported.

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Shivani is the editorial assistant at TheWeek.com and has previously written for StreetEasy and Mic.com. A graduate of the physics and journalism departments at NYU, Shivani currently lives in Brooklyn and spends free time cooking, watching TV, and taking too many selfies.