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2. Serum vitamin B12 - Wikipedia

   en.wikipedia.org/wiki/Serum_vitamin_B12

   Serum vitamin B 12 is a medical laboratory test that measure vitamin B 12 only in the blood binding to both transcobalamins. [1] Most of the time, 80–94% of vitamin B 12 in the blood binds to haptocorrin, while only 6–20% is binds to transcobalamin ll. [2] Only transcobalamin ll is "active" and can be used by the body. [1]

3. Vitamin B12 Is a Power Nutrient. Here's How to Know If ... - AOL

   www.aol.com/vitamin-b12-power-nutrient-heres...

   “Vitamin B12 requirements are low because we can store up to 2,500 micrograms in the liver,” says Ryan D. Andrews, R.D., C.S.C.S., principal nutritionist at Precision Nutrition. So target just ...

4. Vitamin B12 deficiency - Wikipedia

   en.wikipedia.org/wiki/Vitamin_B12_deficiency

   The prevalence of vitamin B 12 deficiency increased substantially in the elderly, where 31% of the elderly had vitamin B 12 levels below 130 pmol/L. In the most recent NDNS survey conducted between 2008 and 2011, serum vitamin B 12 was measured in 549 adults. [161]

5. Vitamin B12 - Wikipedia

   en.wikipedia.org/wiki/Vitamin_B12

   Vitamin B 12 was discovered as a result of pernicious anemia, an autoimmune disorder in which the blood has a lower than normal number of red blood cells, due to a deficiency of vitamin B 12. [ 5 ] [ 16 ] The ability to absorb the vitamin declines with age, especially in people over 60.

6. The Top Signs You Have a Vitamin B12 Deficiency - AOL

   www.aol.com/top-sign-vitamin-b12-deficiency...

   The Good Housekeeping Institute tested more than 30 brands of B12 supplements, and chose Nature made B12 1000mcg as the best overall option, and Garden of Life Vitamin Code Raw B12 as the best ...

7. These High-Quality Vitamin B12 Supplements Can Help ... - AOL

   www.aol.com/high-quality-vitamin-b12-supplements...

   “Vitamin B12 is necessary for normal processing of carbs, proteins, ... Again, the daily recommended dietary allowance of vitamin B12 for most adults is 2.4 micrograms, stretching up to 2.6 and ...

8. Reference ranges for blood tests - Wikipedia

   en.wikipedia.org/wiki/Reference_ranges_for_blood...

   Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...

9. Vitamin B12 deficiency symptoms - AOL

   www.aol.com/finance/vitamin-deficiency-cause...

   Most adults need 2.4 micrograms of vitamin B12 a day, although the numbers are slightly higher during pregnancy and breastfeeding. Causes of vitamin B12 deficiency There are a few reasons why ...