Brittle Fingernails

Brittle nails are thin and break or peel easily. They can look unattractive and it can be frustrating to have ragged, short nails. Brittle nails can be a sign of aging, nutritional deficiencies, excessive wear and tear, exposure to chemicals and water, and also can appear as a symptom of some diseases.

Nutrition

Virtually every nutritional deficiency can affect the growth of the nail in some manner, according to George Washington University's M.W. Cashman in a July, 2010, "Clinics in Dermatology" article. The University of Maryland Medical Center notes that brittle nails may result from low levels of zinc and iron. Supplementing your diet with biotin may also help improve brittle nails, according to Oregon State University's Linus Pauling Institute, though larger studies are needed. Because nails grow slowly, it will take awhile to see an improvement when you change your diet to include more minerals and vitamins. Improving your overall health can strengthen your nails as well.

Moisture

Dryness affects your nails, according to lead author L. Farran in a June, 2009, article in the "Journal of Biomechanics." Dry nails are more brittle. Correspondingly, moist nails are more flexible. Add moisture to your nails by massaging moisturizing lotion or cream directly into your nails. Moisture comes from the inside also, so drink eight 8 oz. glasses of water every day. Applying nail polish once a week can help to retain moisture, but nail polish remover can make your nails dry.

Exposure to Chemicals and Water

You can develop brittle nails if your hands are frequently exposed to water, strong soaps and other chemicals. Household cleaning products, for instance, can strip moisture from your nails. Protect your nails by wearing disposable gloves when you will be submerging your hands in water and cleaning products, or when working with chemicals such as hair dye, dish washing detergents, paint, solvents or automobile products.

Trauma

Some professions and hobbies can have adverse effects on your nails, making them brittle and weak. Gardening, auto repair and construction, for instance, can be damaging to your nails. Wear appropriate gloves when you are working in your garden, changing the oil in your car or working on building projects.

Considerations

Brittle nails can also be a symptom of disease, such as thyroid disease, anorexia nervosa or other diseases that cause malnutrition. If you have brittle nails with other symptoms such as unhealthy hair and skin, fatigue, pallor or poor circulation, you should see your physician for a physical exam.