---
title: "Brittle Nails in Your 50s: Causes, Fixes, and Lab Tests"
description: "Brittle nails in your 50s often come from low iron, thyroid slowdown, or repeated wet-dry damage. Targeted labs available at Quest—no referral needed."
canonical: "https://www.vitalsvault.com/symptoms/brittle-nails-in-50s"
last-updated: 2026-08-22
---

# Brittle Nails in Your 50s: Causes, Fixes, and Lab Tests

> Brittle nails in your 50s often come from low iron, thyroid slowdown, or repeated wet-dry damage. Targeted labs available at Quest—no referral needed.

---

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