Why is there defeciency diseass in the chapter components of food ??

Solution:

Deficiency diseases or disorders occur mainly due to the deficiency of one or more nutrients in the diet over a long period of time. For example,

• Night blindness disease is caused due to the deficiency of vitamin A in the diet.
• Beriberi disease is caused due to the deficiency of vitamin B.
• Anaemia disease is caused due to the deficiency of iron.

It is included in the chapter components of food because deficiency diseases occur when there is an insufficient supply of food components like vitamins and minerals in the body.