People with nutritional deficiencies, such as protein or iron
Those with underlying medication conditions such as lung disorders or infections
Most nail problems stem from abuse— everything from picking and biting to overuse of polish
removers, glues, and other harmful chemicals In some instances, however, unhealthy nails actually
reflect a nutritional deficiency or an underlying medical problem
Old School
Gelatin, calcium, or zinc supplements aid nail health
New Wisdom
Gelatin lacks the amino acids to give nails strength And nails contain very little calcium or zinc
Nutrition Connection
Here are a few guidelines for healthy nails:
Bulk up on protein To make keratin, a strong protein that’s a major component in skin, hair, and
nails, the body needs high-quality protein from lean meat, poultry, fish, seafood, and other animal
products A combination of grain products and legumes will also supply complete protein
Add iron-rich foods A common nutrition-related nail problem involves iron-deficiency or other
anemias, in which the blood does not deliver adequate nutrients to the nails Increasing the
consumption of iron-rich foods—lean meat, poultry, eggs, seafood, dried apricots, and fortified and
enriched cereals and breads—may be enough to cure mild iron-deficiency anemia A doctor should
be consulted, however, to determine whether the anemia is caused by other nutritional deficiencies or
to chronic hidden bleeding Never self-treat with iron supplements; they can lead to toxicity and many
other serious problems
Check C levels Vitamin C helps the human body absorb iron from plant sources Thus, a balanced
diet should include citrus fruits and a variety of other fresh fruits and vegetables
Try folate Some types of anemia that affect the nails are caused by a deficiency of folate, an
essential B vitamin Whole grains, legumes, dark green leafy vegetables, peas, nuts, and orange juice
are good sources of folate and other important B vitamins
Add more essential fatty acids If your nails are brittle or flaking, the solution may be increasing
your levels of essential fatty acids These are found in foods such as fatty fish and flaxseeds
Make your nails as strong as a horse’s hooves Long ago, veterinarians discovered that biotin
strengthened horses’ hooves, which are also made from keratin Swiss researchers found that people
who took 2 5 mg of biotin a day for 5 5 months had firmer, harder nails In a U S study, 63% of
people taking biotin for brittle nails experienced an improvement
Beyond the Diet
Keep your nails hydrated Rub a small amount of petroleum jelly, castor oil, or olive oil into your
cuticle and the skin surrounding your nails every evening before you go to bed or whenever your nails
feel dry
Wear rubber gloves whenever you do housework or wash dishes Most household chores, from
gardening to scrubbing the bathroom to washing dishes, are murderous on your nails To protect your
digits from dirt and harsh cleaners, cover them with vinyl gloves whenever it’s chore time