Hi, This is not a digestive problem and it is a common habit.
It is most often a behavioural response to stress, anxiety, nervousness or sometimes even boredom.
1) Identity triggers- notice when you bite nails and try to interrupt it.
2) Substitute habit- keep a stress ball, Chew
sugar-free gum or keep your. hands busy
keep your nails. trimmed
Next Steps
Practice deep breathing, meditation, regular exercise. Cognitive Behavioural Therapy can help.
Health Tips
If habit is severe, Consult a
psychologist, Hope this helps., If any help, Consult me on
practo