Vitamin B12 (Cobalamin) Most Popular

The Vitamin B12 (Cobalamin) test contains 1 test with 1 biomarker.

Vitamin B12 is decreased in pernicious anemia, total or partial gastrectomy, malabsorption and certain congenital and biochemical disorders

The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.

Also known as: B12, B12 Vitamin, Cobalamin, Cyanocobalamin, Vitamin B12 Cobalamin

Vitamin B12

Vitamin B12 is part of the B complex of vitamins and measurea the levels of vitamin B12 in the liquid portion of the blood, the serum or plasma, to detect deficiencies. Cobalamine, or vitamin B12, is found in animal products such as red meat, fish, poultry, milk, yogurt, and eggs and is not produced in the human body. In recent years, fortified cereals, breads, and other grain products have also become important dietary sources of B12. Vitamin B12 is necessary for normal RBC formation, tissue and cellular repair, and DNA synthesis. B12 is important for nerve health. A deficiency in B12 can lead to macrocytic anemia. Megaloblastic anemia, a type of macrocytic anemia, is characterized by the production of fewer but larger RBCs called macrocytes, in addition to some cellular changes in the bone marrow. B12 deficiency can lead to varying degrees of neuropathy, nerve damage that can cause tingling and numbness in the affected person's hands and feet.