Common Functions and Deficiency of Vitamins

Common Name

Functions

Deficiency

1

Vitamin A

Helps in reproduction, embryonic development, growth, and immunity, and maintains the stability of the skin and mucous membranes.

Night blindness, hyperkeratosis, etc.

2

Vitamin B1

Helps in the metabolism of carbohydrates, and nerve functioning.

Beriberi, Wernicke-Korsakoff syndrome.

3

Vitamin B2

Helps in energy generation by breaking down protein, fats, and carbohydrates.

Eye and nerve problems.

4

Vitamin B3

Helps in fatty acid synthesis, steroid synthesis, and cellular metabolism.

Pellagra

5

Vitamin B5

Helps as a cofactor for fatty acid elongation, breaking down of fats and carbohydrates, and maintaining healthy skin, hair, eyes, and liver.

Nerve and GI tract problems, and Paresthesia.

6

Vitamin B6

Helps in hemoglobin production of hemoglobin, metabolism of nitrogen and amino acids, controls blood glucose levels, etc.

Anemia and peripheral neuropathy.

7

Vitamin B7

Helps in the metabolism of carbohydrates, fatty acids, and amino acids.

Dermatitis, enteritis, and conjunctivitis.

8

Vitamin B9

Helps in cell division, maturation of RBC, DNA synthesis, and metabolism of amino acids.

Embryonic deformities, Megaloblastic anemia, etc.

9

Vitamin B12

Helps in cell division, blood production, neurological function, and metabolism of amino acids, folic acids, and fatty acids.

Anemia, GI tracts, and nerve problems.

10

Vitamin C

Helps in absorption of non-heme iron, immunity, hormone synthesis, collagen synthesis, antioxidant, etc.

Scurvy, joint pain, etc.

11

Vitamin D

Helps in the mineralization of bones, maintaining blood phosphorus and calcium levels.

Osteomalacia, and Rickets.

12

Vitamin E

Helps in maintaining cell membranes, maintaining polyunsaturated fatty acids in the cells, antioxidants, healing wounds, etc.

Anemia, Infertility.

13

Vitamin K

Helps in protein synthesis, blood coagulation, bone mineral metabolism, etc.

Bleeding disorder.