Like to bite your fingernails?
No prob, just swallow them and you'll have an extra boost of that protein that keeps you growing!
Fingernails, and toenails, are made up of keratin, a certain kind of protein found in our strands of hair. The nails are actually fomed by epithelial cells which grow from the growth plate. During growth they die and the inside of the cells become filled with a hard protein called keratin. It is the keratin that makes our nails hard and tough.
