What is the normal range for B12 levels?
Normal values are 160 to 950 picograms per milliliter (pg/mL), or 118 to 701 picomoles per liter (pmol/L). Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or may test different samples. Talk to your provider about what your specific test results mean.
What are normal folate levels?
Normal Results The normal range is 2.7 to 17.0 nanograms per milliliter (ng/mL) or 6.12 to 38.52 nanomoles per liter (nmol/L).
What level of B12 is considered deficient?
A serum vitamin B12 level less than 180 ng/L may cause megaloblastic anemia and peripheral neuropathies. Vitamin B12 levels less than 150 ng/L are considered evidence of vitamin B12 deficiency.
What are normal B12 and folate levels?
Adults – 2-20 ng/mL, 2-20 μg/L, or 4.5-45.3 nmol/L. Children – 5-21 ng/mL, 5-21 μg/L, or 11.3-47.6 nmol/L.
What is the normal vitamin D level for a woman?
A level of 20 nanograms/milliliter to 50 ng/mL is considered adequate for healthy people. A level less than 12 ng/mL indicates vitamin D deficiency.
How much folate is toxic?
Toxicity. It is extremely rare to reach a toxic level when eating folate from food sources. However, an upper limit for folic acid is set at 1,000 mcg daily because studies have shown that taking higher amounts can mask a vitamin B12 deficiency.
Is testing for clinical cobalamin deficiency truly unreliable?
Although many investigators view cobalamin testing as unreliable, cobalamin, like all diagnostic biomarkers, performs satisfactorily in clinical deficiency but less well in SCCD.
What is cobalamin used for?
Cobalamin is required for proper digestion, absorption of foods, the synthesis of protein, and the metabolism of carbohydrates and fats. Cobalamin is a natural alternative to harmful medications used to treat and prevent many diseases and ailments.
What is cobalamin deficiency?
Cobalamin deficiency is a intracellular disorder which is caused due to abnormal metabolism of cobalamin.