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

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

    MyKind Organics Vegan B12 Spray. Made with methylcobalamin and oodles of organic fruit and botanicals, one spray a day tastes like raspberries while delivering 500 micrograms of vitamin B12. Plus ...

  3. How vitamin B12 could give you an energy boost - AOL

    www.aol.com/finance/vitamin-b12-could-energy...

    That includes folks with an autoimmune disorder called pernicious anemia, who are unable to absorb B12, and people who take a lot of over-the-counter stomach-acid reducers, like famotidine ...

  4. The Best Supplements for Men Over 50, According to ... - AOL

    www.aol.com/best-supplements-men-over-50...

    Nutrient deficiencies that commonly affect older adults include vitamin B12, iron, vitamin D, and calcium. Unbalanced dietary patterns in this age group also lead to low levels of omega-3 fatty ...

  5. Intrinsic factor - Wikipedia

    en.wikipedia.org/wiki/Intrinsic_factor

    Because vitamin B 12 absorption is a multistep process that involves the stomach, pancreas and small intestine, and is mediated by two carriers: Haptocorrin and intrinsic factor, and because Haptocorrin (transcobalamin I) binds to vitamin B 12, and Vitamin B 12 is acid-sensitive, when vitamin B 12 binds to Haptocorrin it can safely pass through ...

  6. 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. [17]

  7. 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.

  8. Vitamin B12 deficiency - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B12_deficiency

    Vitamin B 12 deficiency, also known as cobalamin deficiency, is the medical condition in which the blood and tissue have a lower than normal level of vitamin B 12. [5] Symptoms can vary from none to severe. [1] Mild deficiency may have few or absent symptoms. [1]

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

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

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