What Those Vertical Lines on Your Nails After 40 Could Be Telling You

Another factor is moisture loss. As skin and nails get drier over time, everyday habits like frequent hand-washing or exposure to harsh cleaners can worsen dryness, making nails brittle and more textured.

Could It Be a Nutritional Deficiency?
Sometimes, your nails are trying to tell you more. As we get older, our bodies can become less efficient at absorbing vital nutrients. Deficiencies in the following can subtly affect nail health:

Biotin (B7): Boosts keratin production
Iron: Delivers oxygen to nail cells
Magnesium: Aids proper cell repair
Zinc: Supports tissue growth and regeneration
A shortfall in any of these might cause nails to become weak, dull, or more deeply ridged.

⚠️ When Should You Pay Closer Attention?
Vertical ridges alone are usually benign. But if they’re accompanied by other changes, it might be time to check in with a doctor:

Discoloration (yellow, blue, brown)
Nails that thicken, split, or crumble
Swelling, tenderness, or redness around the nail
Sudden or dramatic changes in texture
In rare cases, nail changes may point to systemic issues like thyroid problems, circulatory concerns, or autoimmune conditions.

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