Is it normal to eat skin?
Depends.It depends
Eating the skin on foods like chicken or fish is completely normal. Eating skin from your own body is less common, especially if you’re picking at it or swallowing it regularly.
If you mean animal skin—like crispy chicken skin or fish skin—yes, plenty of people eat it. It’s just part of the food.
If you mean skin from your own body, some people bite or chew loose skin around their nails, but repeatedly picking or eating it can leave you with sore spots or infection. If it’s hard to stop or is causing wounds, it’s worth talking it over with a health professional.