Fact or Fiction: Nails

Staff

Nails are made of a protein called keratin, the same as animal hooves and horns.

When skin cells die, they're replaced by keratin protein deposits, which grow into nails.

Vitamin B12 is great for your nails.

Vitamin B7, or biotin, has been shown to strengthen brittle fingernails.

Walnuts, sunflower seeds and brown rice are good sources of biotin.

Yes, all of these foods are great for your nails. You can also try green peas, oats and soybeans.

Manicures are generally great for your nails, but you should steer away from polish that contains formaldehyde and toluene.

All three of these nail polish ingredients can dry out your nails and make them brittle.

Your fingernails grow about a millimeter a day.

Nope, it's even slower than that. Most people's nails grow about a tenth of a millimeter per day.

If you completely lose a fingernail, it will take a year to grow back.

You'll have to wait about six months for the nail to be fully grown.

Your toenails grow twice as fast as your fingernails.

Your toenails grow at about one-half to one-third the rate of your fingernails.

If you have black, brown or purple discoloration under a nail that wasn't caused by an injury, it could be a melanoma.

You should see a doctor if you have this issue -- it could indeed be a melanoma.

The same type of fungus that causes athlete's foot can give you a fungal nail infection.

True. Most fungal nail infections are caused by the athlete's foot fungus and tend to pop up after an athlete's foot outbreak.

If you have a fungal nail infection, your nail could turn brown or black.

Nails with fungal infections more often turn yellow or white.

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Image: refer to hsw

About This Quiz

Your nails are handy for so many things -- scratching itches, peeling oranges, drumming on tables. But what do your nails say about your health? And what can you do to keep them strong and healthy? Do your hands a favor and take our quiz.

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