Nails are primarily composed of keratin, a protein requiring amino acids and supportive nutrients. Adequate intake of protein, biotin, zinc, and iron supports nail formation and prevents brittleness.

Keratin is a protein that forms the nail matrix. Consuming sufficient dietary protein from eggs, lean meats, legumes, and dairy ensures the body can build strong nails.

Biotin (vitamin B7) is a cofactor for enzymes involved in keratin synthesis. Adequate biotin intake improves nail thickness and reduces splitting and peeling over time.

Zinc, iron, and magnesium are critical for nail cell function and structural integrity. Sources include nuts, seeds, lean meats, and leafy greens.

Brittle, thin, or slow-growing nails may indicate protein, biotin, or mineral deficiency. Persistent nail issues should be evaluated by a healthcare professional.

Topical moisturizers and gentle nail care complement internal nutrition. Protecting nails from harsh chemicals, prolonged water exposure, and mechanical stress improves durability.

Can protein supplements strengthen nails?
They support nail growth if dietary protein is insufficient, but overall diet balance is essential.

Is biotin deficiency common?
Biotin deficiency is rare but can contribute to brittle nails; supplementation is generally safe when needed.

Protein, biotin, and minerals are essential for nail strength and growth. Combining proper nutrition with gentle nail care promotes healthier, more resilient nails for hands and feet.

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