Get a mineral supplement, not to be confused with your vitamin a day, and in two weeks the habit will be gone.
Do you wear nail polish? This might be a good thing to try, as you don't want to eat nail polish, gross! Also, a friend of mine put bandaids on her kids fingers for a week. It might look silly for a while but it could help :)
I used to bite my nails until I started watching “monsters inside me” and learned of all the bacteria hands can carry and especially bacteria inside of my nails. I became grossed out and immediately broke the habit. Haven’t bit my nails in 11 years, however everyone is different but this is what stopped me.
18 gibbs 20
Keep a nail file with you. Instead of biting gently file for a bit. It will remind you.not to bite and keep the nails looking good.
nnaybe you can put sonnething in your nails that nnake it taste nasty and that nnight help you stop