A deficiency disease is caused due to the deficiency of certain vitamins and minerals. The deficiency of vitamin lead to the vitamin deficiency disease.
| Vitamin/Mineral | Deficiency disease | Symptoms |
| Vitamin A | Loss of vision | Poor vision, loss of vision in darkness |
| Vitamin B1 | Beri beri | Weak musles and very little energy to work |
| Vitamin C | Scurvy | Bleeding gums, wounds take longer time to heal |
| Vitamin D | Rickets | Bones become soft and bent |
| Calcium | Bone and tooth decay | Weak bones, tooth decay |
| Iodine | Goitre | Glands in the neck appear swollen, mental disability in children |
| Iron | Anaemia | Weakness |
Deficiency of protein causesstunted growth, swelling offace, discolouration of hair,skin diseases and diarrhoea. If food is deficient in bothcarbohydrates and proteins,the growth may stopcompletely; a personbecomes very lean, thin andso weak that he/she may noteven be able to move.
BPCS Notes brings Prelims and Mains programs for BPCS Prelims and BPCS Mains Exam preparation. Various Programs initiated by BPCS Notes are as follows:-