White nails
This condition, also called Terry’s nails, is when most of the nail appears white except for a horizontal pink stripe near the top. It may be a sign of aging, but it can also be a symptom of liver disease, congestive heart failure, kidney failure or diabetes. Pale white nails could also be a sign of anemia or a zinc deficiency. The only way to know for sure is to go and see your doctor, pronto!
Your fingernail lines and nail color can give you a lot of information about your overall health, if only you take the time to look. Make sure to give your nails a glance every now and again — your body will thank you for it.
— The Alternative Daily