Brittle Nails | Health Notes at WWSM | Health Information at WWSM

Brittle Nails

Put your best fingers forward by restoring nail strength. According to research or other evidence, the following self-care steps may help you break free from brittle nails:

Try biotin
Increase nail thickness and strength by taking 2.5 mg of this B vitamin every day

Get a check-up
Visit a qualified doctor to find out if your brittle nails are caused by a treatable medical condition or a nutritional deficiency

These recommendations are not comprehensive and are not intended to replace the advice of your doctor or chemist. Continue reading the full brittle nails article for more in-depth, fully-referenced information on medicines, vitamins, herbs, and dietary and lifestyle changes that may be helpful.

About brittle nails

Brittle nails can be weak, thin, nails that peel or break easily, and/or grow slowly.

The common condition of brittle nails is often not definitively linked with any known cause. Nonetheless, natural medicine may be able to help strengthen brittle nails.

Most conditions that affect nails are unrelated to nutrition; they are caused by a lack of oxygen associated with lung conditions, haemorrhage due to infection, or inflammation around the nail due to infection. If there is any question about what the problem is, it is important to get a diagnosis from a doctor.

Product ratings for brittle nails

Science Ratings	Nutritional Supplements	Herbs
	Biotin Glucosamine
	Gelatine	Horsetail
Reliable and relatively consistent scientific data showing a substantial health benefit. Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit. For a herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit.

Science Ratings

Nutritional Supplements

Herbs

Biotin

Glucosamine

Gelatine

Horsetail

Reliable and relatively consistent scientific data showing a substantial health benefit.
2Stars

Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
1Star

For a herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit.

What are the symptoms?

People with brittle nails may have frequent or easy breaking, cracking, splitting, or tearing of their nails.

Other therapies

Therapy involves the intake of adequate nutrition; especially protein, vitamin A, vitamin C, vitamin B6, niacin, calcium, and iron; the use of gloves when washing dishes, and the avoidance of drying chemicals, such as nail polish remover. Treatment of an underlying medical condition, such as thyroid deficiency or poor circulation, may be necessary.

Vitamins that may be helpful

Nutrition can affect the health of nails in a variety of ways. Iron deficiency may cause spoon-shaped nails.¹ For years, some doctors have believed zinc deficiency causes white spots to appear on nails. In China, excessive selenium has been linked to nails actually falling out.²

Biotin, a B vitamin, is known to strengthen hooves in animals. As a result, Swiss researchers investigated the use of biotin in strengthening brittle fingernails in humans, despite the fact that it remains unclear exactly how biotin affects nail structure. An uncontrolled trial of 2.5 mg biotin per day found improved firmness and hardness in almost all cases after an average treatment time of 5.5 months.³ In a controlled trial using 2.5 mg of biotin per day, women with brittle nails, who had their nail thickness measured before and at six to fifteen months after, found their nail thickness increased by 25%. As a result, splitting of nails was reduced. In an uncontrolled study of people who had been taking biotin for brittle nails in America, 63% showed improvement from taking biotin.⁴ Although the amount of research on the subject is quite limited and positive effects do not appear in all people, those people having brittle nails may want to consider a trial period of at least a few months, using 2.5 mg per day of biotin.

Gelatine has been marketed as a remedy for brittle nails since the turn of the twentieth century and has been mentioned in medical journals at least since the 1950s.⁵ ⁶ ⁷ Gelatine is a slaughterhouse by-product, made from the hooves and other inedible connective tissue of cows. While some people claim success using gelatine to strengthen brittle nails, others claim that the remedy is ineffective,⁸ ⁹ and that the real cause of brittle nails is lack of moisture, not protein deficiency.

One doctor has observed that supplementation with glucosamine sulphate (amount not specified) can increase the growth rate and strength of fingernails and toenails;¹⁰ however, no controlled trials have been done.

Are there any side effects or interactions?
Refer to the individual supplement for information about any side effects or interactions.

Herbs that may be helpful

Anecdotal reports suggest that horsetail may be of some use in the treatment of brittle nails.¹¹ This may be due to the high content of silicic acid and silicates in horsetail, which provide approximately 2 to 3% elemental silicon.

Are there any side effects or interactions?
Refer to the individual herb for information about any side effects or interactions.

References
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The information presented in Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or chemist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires September 2008.