Deficiency Diseases

Lack of nutrients causes diseases. Vitamin A deficiency → Night blindness. Vitamin C deficiency → Scurvy (bleeding gums). Vitamin D deficiency → Rickets (weak bones). Iron deficiency → Anaemia (pale skin, tiredness). Iodine deficiency → Goitre (swollen thyroid). Protein deficiency → Kwashiorkor (bloated belly in children).