If you suffer with nail pitting then the surface of your nails will have small dents on the surface and the nail may become weekend and fall off. Its is always best to check with your doctor for underlying health problems.
Many people who suffer with Psoriasis also have pitted nails, but other health problems may be the cause such as a bad diet, digestive troubles (leaky gut, low absorption, inflammatory bowel diseases, hyperacidity).
Diet Tips for Nail Health:
Essential fatty acids such as oily fish, nuts, avocados etc
Eat plenty of leafy green vegetables
Eat good quality proteins.