Are Your Nails Always Splitting or Breaking? Here’s What Your Body Is Trying to Tell You | June 14, 2025

Nail health is often overlooked, yet it reveals important insights about your overall well-being. Healthy nails are smooth, uniform in color, and consistent in texture. When nails start splitting or breaking, it may signal nutritional deficiencies, health conditions, or exposure to harmful substances.

Common Causes of Nail Splitting and Breaking
Nail splitting, medically known as onychoschizia, can be caused by:

Frequent exposure to water, harsh chemicals, detergents

Physical trauma like nail biting or using nails as tools

Health conditions (thyroid disorders, psoriasis, fungal infections)

Nutritional deficiencies, especially in biotin, iron, and zinc

The Role of Nutrition in Nail Health
Proteins, especially keratin, form the base of nails. Vitamins like biotin (B7), vitamin E, and minerals such as zinc and iron are essential for nail strength and growth. A balanced diet rich in these nutrients helps prevent brittleness and promotes healthy nails.

Manganese Deficiency: A Hidden Culprit
Manganese is crucial for bone formation, blood clotting, reducing inflammation, and collagen production (important for nail health). Deficiency, though rare, can cause brittle nails. Causes include poor diet or absorption issues.

How to Identify Manganese Deficiency in Your Body
Symptoms include brittle nails, weak bones, joint pain, and poor wound healing. Because it’s rarely tested in routine blood work, consult a healthcare provider for diagnosis and dietary advice if you suspect a deficiency.

The Importance of a Balanced Diet for Strong Nails
Eat foods rich in:

Biotin (eggs, nuts, seeds)

Iron and zinc (leafy greens)

Protein for keratin production
A varied, nutrient-rich diet supports nail health and strength.

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