What to Eat to Reduce Nail Ridges: A Nutrition Guide for Healthier Nails

3. Iron: Preventing Weak or Grooved Nails
Iron deficiency can lead to thin nails and, in more severe cases, spoon-shaped nails (koilonychia). While vertical ridges alone don’t automatically mean iron deficiency, persistent weakness or fatigue alongside nail changes may be worth discussing with a healthcare provider.

Iron-rich foods include