People say that white flecks on your fingernails indicate that you are having calcium or other nutritional deficiency.

Is this myth true or not?
Not really.

This is just an old wives’ tale to trick kids and young teens to take more calcium food.

According to some dermatologist researches, these whit spots or flecks are layers of calcium under the base of your fingernail. It is also known as “leukonychia” in medical terms.
It is common to see white spots or flecks on any part of your fingernail out of the blue. There is a possibility that you had accidentally knocked your fingernail against a hard object or surface such as the table or wall when the hit area was still developing below the cuticle.