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Vitamin B12

by Kevin Ahern, PhD
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    Vitamin B12 is by contrast of vitamin that’s very unusual in its structure. You can see one of the forms of vitamin B12 on the screen here. And it participates in a very unusual set of reactions. Now, it turns out that these unusual reactions that it participates in and that it helps to contribute to are very critical. Absence of vitamin B12 results in various health issues. Cyanocobalamin is one of the forms of vitamin B12 that is made and you can see them on the screen here. An artificial form is made by human beings, but given the people who lack vitamin B12. And It functions perfectly as vitamin B12 and there are various forms of vitamin B12 that are naturally produced as well. Now, one of the critical things about vitamin B12 is that it’s not made in plants. So people who are one on strict vegan diets, who are not eating any animal products will become deficient overtime with vitamin B12 because they can’t get what they need from plants. People who are on diets like that need to be sure they check with their doctor and get supplements as appropriate to get enough vitamin B12 to maintain the reactions we’ll describe here. Vitamin B12 is normally obtained in a diet from meat and dairy products or other animal products and it doesn’t take a lot. Deficiency of vitamin B12 leads to pernicious anemia which is a very severe anemia relating to your blood supply. And people who sometimes lack energy, one of the things they'll check in a person is whether vitamin B12 level's okay. Because people with vitamin B12 deficiency will first notice that they don’t have energy because of lack of that vitamin. There are several different forms of vitamin B12 as I...

    About the Lecture

    The lecture Vitamin B12 by Kevin Ahern, PhD is from the course Vitamins. It contains the following chapters:

    • Vitamin B12
    • Bitamin B12 - Propionic Acid Metabolism
    • Vitamin B12 and Methionine Metabolism

    Author of lecture Vitamin B12

     Kevin Ahern, PhD

    Kevin Ahern, PhD


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