- published: 07 Oct 2014
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Vitamin B12, vitamin B12 or vitamin B-12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid metabolism and amino acid metabolism. Neither fungi, plants, nor animals (including humans) are capable of producing vitamin B12. Only bacteria and archaea have the enzymes required for its synthesis, although many foods are a natural source of B12 because of bacterial symbiosis. B12 is the largest and most structurally complicated vitamin and can be produced industrially only through a bacterial fermentation-synthesis.
Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which show biological activity. It contains the biochemically rare element cobalt positioned in the center of a planar tetra-pyrrole ring called a corrin ring. Biosynthesis of the basic structure of the vitamin is accomplished only by bacteria and archaea (which usually produce the form hydroxocobalamin), but conversion between different forms of the vitamin can be accomplished in the human body.
B12 most often refers to:
B12 or B-12 may also refer to:
Vitamin B12 deficiency, also known as hypocobalaminemia, refers to low blood levels of vitamin B12. A wide variety of signs and symptoms may occur including a decreased ability to think and changes in personality such as depression, irritability, and psychosis. Abnormal sensations, changes in reflexes, and poor muscle function can also occur as may inflammation of the tongue, decreased taste, low red blood cells, reduced heart function, and decreased fertility. In young children symptoms include poor growth, poor development, and difficulties with movement. Without early treatment some of the changes may be permanent.
Common causes include poor absorption from the stomach or intestines, decreased intake, and increased requirements. Decreased absorption may be due to pernicious anemia, surgical removal of the stomach, chronic inflammation of the pancreas, intestinal parasites, certain medications, and some genetic disorders. Decreased intake may occur in those who eat a vegan diet or have malnutrition. Increased requirements occur in HIV/AIDS and in those with rapid red blood cell breakdown. Diagnosis is typically based on vitamin B12 blood levels below 120–180 picomol/L (170–250 pg/mL) in adults. Elevated methylmalonic acid levels (values >0.4 micromol/L) may also indicated deficiency. A type of low red blood cells known as megaloblastic anemia is often but not always present.
Michael Herschel Greger (born 25 October 1972) is an American physician, author, and professional speaker on public health issues. He is a graduate of the Cornell University School of Agriculture and the Tufts University School of Medicine. He started eating a plant-based diet in 1990. He is currently the Director of Public Health and Animal Agriculture at the Humane Society of the United States (HSUS) and Humane Society International. Greger is the author of several books and various scholarly publications on animal agriculture, nutrition, and human health. In 2011, he founded the website NutritionFacts.org. He also is a founding member and Fellow of the American College of Lifestyle Medicine.
Greger's promotion of veganism has been criticized for including exaggerated claims of health benefits and for cherry-picking research.
Greger is licensed as a general practitioner specializing in clinical nutrition. Greger contributes to the HSUS's efforts to shape public policy on agriculture and nutrition.
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The deficiency of vitamin B12, or hypocobalaminemia, refers to the reduced levels of this vitamin in the blood. It is manifested by many signs and symptoms, many of them related to the psychological and emotional health. The most common cause include reduced intake, the use of certain medications, genetics, malnutrition, poor absorption from the stomach or intestines, chronic inflammation of the stomach, intestinal parasites, and more. https://homereemediess.blogspot.com/ vitamin b12 deficiency vitamin b12 b12 b12 deficiency b12 vitamin vit b12 vitamin b12 injections b12 deficiency symptoms vitamin b12 deficiency symptoms vitamin b12 foods vitamin deficiency vitamin b12 benefits symptoms of b12 deficiency vit b12 deficiency sources of vitamin b12
Vitamin B12 की कमी के कारण, लक्षण और उपचार , ASTRO AMIT , भारतीय ज्योतिष एवं आयुर्वेद , VITAMIN B SUPPLEMENTS , AYURVEDIC MULTIVITAMIN , COMPLETE WELLNESS , FOR SKIN , FOR HAIR GROWTH , WEIGHT LOSS , NATURAL VITAMINS ,
Being low on Vitamin B12 is not just a vegan issue. There are so many different Vitamin B12 supplements out there as well as different forms of B12. So which should we take? Have there been any studies to show which form of Vit B12 is best and most effective?How many forms of Vit B12 are there? Keep listening as Dr Michael Greger and I answer these questions....... Dr Greger's YouTube Channel https://www.youtube.com/user/NutritionFactsOrg Dr Greger’s website http://nutritionfacts.org/ DR GREGER'S BOOK - HOW NOT TO DIE http://www.amazon.com/How-Not-Die-Discover-Scientifically/dp/1250066115/ref=sr_1_1?ie=UTF8&qid;=1452502535&sr;=8-1&keywords;=how+not+to+die http://nutritionfacts.org/book/ This is for educational purposes only and no copyright infringement is intended. Follow me on insta...
http://draxe.com/ In this video, I’m going to talk about how to overcome Vitamin B12 deficiency and the health benefits of Vitamin B12. Surprisingly, about 40% of the population is deficient. Some of the big warning signs that show you are Vitamin B12 deficient are if you struggle with low energy, fatigue, lack focus, poor memory, poor cellular function, autoimmune disease, anemia, or thyroid condition. The biggest reason most people have Vitamin B12 deficiency is because they don’t have a healthy digestive system to digest this vitamin properly, also known as leaky gut. If you can’t absorb nutrients and vitamins properly, then you won’t be able to absorb the vitamins you need for optimal health. People who struggle with leaky gut or digestive issues, vegans or vegetarians, and people ...
http://www.MarkusNews.com What is vitamin B12, where do you get it and what depletes it? What are the best sources of vitamin B12? If you got a blood test and they told you your B12 was low, it doesn’t mean anything. Serum B12 levels do not reflect true B12 levels since most B12 in the body is stored in the liver and blood tests do not determine stored B12 levels. B12 is stored in the body for years and years and the odds are that in that time, you will accumulate more B12. Vitamin B12 is basically bacteria poop. In the natural world, (the way we were designed to live), you would pull a carrot out of the ground, brush it off and eat it. There would be little bits of dirt and millions of microscopic organisms all over that carrot. B12! Do you actually think in the 5-7 years B12 stays ...
Never ignore these warning signs of vitamin b12 deficiency - Vitamin b12 defiency symptoms Link: https://www.youtube.com/watch?v=SUxKlAVpt5s Please subscribe our channel: https://www.youtube.com/c/livehealthylifeofficial Like us on Facebook: https://www.facebook.com/Live-Healthy-Life-1645151002425115 Follow us on Twitter : https://twitter.com/livehealthylif1 Follow us on Google+ : https://plus.google.com/+LiveHealthyLifeofficial Mineral deficiencies are more common than vitamin deficiencies, statistics show that one in four adults takes care of the lack of vitamin B12. This video focuses on the causes of vitamin B12, the main symptoms, as well as some tips on how to remedy this deficiency in a totally natural way. Since it increases energy in the evening and gives a boost of ener...
Are you deficient in b12? What is vitamin b12, and what are its uses? Although most vegans or vegetarians are at risk of being deficient in this essential mineral, meat eaters can also have problems absorbing b-12. Watch Dr. Group's 1 hour webinar on the most commons symptoms of b12 deficiency, the different sources of b12, and the best kind to get. Here's my product: http://bit.ly/1O3ZY5q The most common symptoms can be found here: http://www.globalhealingcenter.com/natural-health/everything-need-know-vitamin-b12-deficiency/?utm_source=youtube&utm;_medium=social&utm;_term=description&utm;_campaign=YouTube_B12DeficiencySymptoms Here is the supplement that I developed with the 2 co-factors (methylcobalamin and adenosylcobalamin): http://www.globalhealingcenter.com/vegansafe-b-12.html?utm_s...
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