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Nutrition and nail disease.
Michael W Cashman1, Steven Brett Sloan
1George Washington University School of Medicine, 2300 Eye Street NW, Washington, DC 20037, USA.
Clinics in Dermatology
|July 13, 2010
Summary
Nail disorders are common dermatologic conditions. Nutritional deficiencies can significantly impact nail growth and health, with supplements like biotin showing promise for treatment.
Area of Science:
- Dermatology
- Nail Biology
- Nutritional Science
Background:
- Nail disorders represent about 10% of dermatologic conditions.
- The nail unit comprises the hyponychium, nail bed, proximal nail fold, and matrix.
- Understanding nail anatomy and chemical composition is crucial for diagnosing disorders.
Purpose of the Study:
- To provide an overview of nail anatomy and function.
- To review the chemical profile of the normal nail plate.
- To discuss nail manifestations of malnutrition and potential treatments.
Main Methods:
- Literature review of nail anatomy, physiology, and biochemistry.
- Analysis of nutritional deficiencies affecting nail health.
- Review of current literature on supplements for nail disorders.
Main Results:
- Nail growth is approximately 2-3 mm/month, with full replacement in 6-9 months.
- The nail plate is rich in keratin, sulfur, and various minerals.
- Nutritional deficiencies manifest in various nail abnormalities.
Conclusions:
- Nail disorders are prevalent and linked to nutritional status.
- Dietary interventions and supplements may improve nail health.
- Biotin shows potential for treating specific nail conditions like brittle nail syndrome.
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