Difference between Vitamin A and B12
No. |
Vitamin A | Vitamin B12 |
1. | A group of unsaturated nutritional organic compounds is referred as vitamin A. |
A complex organomatrix compound is vitamin B12 and also called as cobalamin. It contains cobalt. |
2. |
Vitamin A contains retinol, retinal, retinoic acid, several provitamin A carotenoids and Beta carotene. From above beta carotene is the most important element. | Vitamin B12 contains porphyrin. |
3. | On daily bases, 600 mcg of vitamin is required to the man or woman and 350 mcg to the infants. |
On daily bases, 1.8 mcg of vitamin B12 is required to the children and adults. |
4. |
Vitamin A can found in carrots, meat, eggs, cheese, mangoes, fish, Broccoli, peppers, melon and avocado. | Vitamin B12 can found in oyster, lobster, crab, clams, caviar, octopus, mussels, meat, shellfish, milk and cheese etc. |
5. | Vitamin A is responsible for the vision, immune function, embryonic development, bone metabolism, haematopoiesis, skin and cellular health, And antioxidant activity. |
Vitamin B12 is responsible for the production of RBCs and it also helps to improve memory, concentration etc. |
6. |
Vitamin A deficiency shows symptoms like poor vision, loss of vision in darkness (night), sometimes complete loss of vision. | Vitamin A deficiency shows symptoms like fatigue, memory loss, pallor, anemia, reduced sensation of touch, shortness of breath. |
7. | Deficiency of vitamin A leads to loss of vision. |
Deficiency of vitamin B12 leads to Anemia, Demyelination and irreversible nerve cell death. |