what is a deficiency disease
Confidence votes 182. A deficiency disease is caused by lack of some nutrient, or essential component for proper bodily functioning. It means that an individual is not getting some really important vitamin or mineral.This can lead to severe consequences for growth, health, or proper bodily activities.onfidence votes 182. A deficiency disease is caused by lack of some nutrient, or essential component for proper bodily functioning. It means that an individual is not getting some really important vitamin or mineral.