6) Discolored nails: watch out for your liver, kidneys and heart
Healthy nails should be pink, while lunules should be white, but if they appear discolored, you could be dealing with some serious health issue. According to WebMD they can be a symptom of: anemia, heart problems, malnutrition, or liver disease. Also, white nails with a darker edge could be a symptom of hepatitis.
