What are deficiency diseases? Name four deficiency diseases and the associated nutrients.

Individuals who are unable to consume a balanced diet and therefore do not get the required amount of nutrients from their diet suffer from deficiency diseases. Four deficiency diseases are:

1. Scurvy: It is caused by a deficiency of vitamin C.
2. Rickets: It is caused by the deficiency of vitamin D.
3. Anaemia: It is caused by the deficiency of iron.
4. Goitre: It is caused by the deficiency of iodine.