a healthcare professional can determine whether testing is appropriate.
Certain
It’s tempting to see nail ridges and immediately assume you’re missing a vitamin.
Usually, it’s not that simple.
Vertical ridges alone cannot diagnose a nutritional deficiency.
However, deficiencies can sometimes produce nail abnormalities.
Iron deficiency, for example, can be associated with ridging and koilonychia, where nails become thin and develop a spoon-like shape. Zinc deficiency can also produce certain nail changes.
Rather than automatically buying supplements, pay attention to your overall diet and other symptoms.
If a deficiency
