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2. B vitamins - Wikipedia

   en.wikipedia.org/wiki/B_vitamins

   Dietary supplements containing all eight are referred to as a vitamin B complex. Individual B vitamins are referred to by B-number or by chemical name, such as B 1 for thiamine , B 2 for riboflavin , and B 3 for niacin , [ 1 ] [ 2 ] while some are more commonly recognized by name than by number, such as pantothenic acid (B 5 ), biotin (B 7 ...

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. ATC code A11 - Wikipedia

   en.wikipedia.org/wiki/ATC_code_A11

   ATC code A11 Vitamins is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products.

5. Hydroxocobalamin - Wikipedia

   en.wikipedia.org/wiki/Hydroxocobalamin

   Hydroxocobalamin, also known as vitamin B 12a and hydroxycobalamin, is a vitamin found in food and used as a dietary supplement. [1] As a supplement it is used to treat vitamin B12 deficiency including pernicious anemia .

6. Transcobalamin - Wikipedia

   en.wikipedia.org/wiki/Transcobalamin

   It primarily serves to protect cobalamin (Vitamin B12) from acid degradation in the stomach by producing a HC-Vitamin B 12 complex. Once the complex has traveled to the more pH-neutral duodenum, pancreatic proteases degrade haptocorrin, releasing free cobalamin, which now binds to intrinsic factor for absorption by ileal enterocytes.

7. Vitamin B12 total synthesis - Wikipedia

   en.wikipedia.org/wiki/Vitamin_B12_total_synthesis

   The structure of vitamin B 12 was the first low-molecular weight natural product determined by x-ray analysis rather than by chemical degradation. Thus, while the structure of this novel type of complex biomolecule was established, its chemistry remained essentially unknown; exploration of this chemistry became one of the tasks of the vitamin's chemical synthesis.