Are white spots on your fingernails really sign of calcium deficiency? © Getty Images

Are white spots on your fingernails really sign of calcium deficiency?

Asked by: Andrew Roberts, Wicklow

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No. Irregular white spots on nails (called leukonychia) are usually caused by minor impact damage to the nail bed. Nails grow slowly so this can take time to appear and even longer to fade. White bands on nails can be associated with severe malnutrition in children or in people suffering from low blood protein, but it’s nothing to do with calcium.


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