If you’ve ever had white spots on your nails before, you may have been dismissively told that it's down to a lack of calcium or zinc. Basically, some mineral-deficiency. But this popular belief doesn’t really have any basis in fact.

According to Healthline, nails grow an average of 3 millimeters per month. Their composition is made up of keratin, a protein, and just 0.03% calcium. So white spots are certainly not just a calcium problem.

What is the color of a healthy nail? What other colours can my nails turn? In under 3 minutes, we answer your questions !

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A podcast written and realised by Joseph Chance.

In partnership with upday UK.

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