Vitamin deficiency questions often end up on board exams. A quick review of the most tested information is below:
Vitamin | Cellular Mechanism | Deficiency Syndrome |
Vitamin A | Photoreceptors, glycoprotein synthesis | Keratomalacia, xerophthalmia |
Vitamin C | Synthesis of collagen, | Scurvy |
Vitamin D | Calcium and phosphorus absorption, bone mineralization | Rickets, osteomalacia, increased risk of some malignancies |
Vitamin K | Prothrombin/coagulation factor formation | Increased bleeding tendency, elevated prothrombin time |
Vitamin | Cellular Metabolism | Deficiency Syndrome |
Vitamin B1 (thiamine) | Carbohydrate metabolism | Beriberi, Wernicke-Korsakoff syndrome |
Vitamin B2 (riboflavin) | Oxidation-reduction reactions | Cheilosis, angular stomatitis |
Vitamin B3 (niacin) | Glycogoen synthesis | Pellagra, dermatosis |
Vitamin B6 (pyridoxine) | Protein metabolism | Convulsions in infancy |
Vitamin B12 (cyanocobalamin) | Maturation of RBCs, neural function, DNA synthesis | Pernicious anemia, megaloblastic anemia, neuropathy |
Information courtesy Christopher Wohltmann, ThePassMachine.com
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