Vitamin B12
Vitamin
Vitamin Guide from A to Zinc: Vitamin A...products and eggs. Stay tuned next week, December 4th, as the vitamin guide continues with the B vitamins, focusing on vitamin B12. Sign up for Amy's monthly Natural Health Newsletter. There is no user feedback yet, leave yours... In this article: B vitamins, Zinc, Pumpkin, Sweet potato, Vitamin B12, and Antioxidant |
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L.A. Times - Booster Shots | 4 days ago
Important world news: the shocking story of the Marmite thief
...the tip of a knife"--contains: 35.6% of your RDA for niacin, 16.6% for thiamin, 17.5% for riboflavin, 50% for folic acid and 60% for vitamin B12. (And, well, yes, 200 milligrams of salt, so the Marmite thief would be well dessicated by now if...
In this article: Dog, Niacin, Thiamin, Riboflavin, Savory, Los Angeles Times, Shell, and Los Angeles
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Sunday Mirror | 4 days ago
How to fix your hangover face
...and stop you feeling jittery, and the eggs will not only stave off carb cravings because of the protein, they're also rich in vitamin B12, one of the B-group vitamins depleted by too much boozing. RELAXATION If you're lucky enough to...
In this article: Apple juice, Orange juice, Eye circles, Toxin, Waitrose, Covent Garden, London, and Heathrow Terminal 5
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Daily Express | 5 days ago
Diet: Tiny foods with big benefits
...to take 400micrograms of folic acid in addition to a healthy diet). A teaspoon of Marmite also supplies 60 per cent of the RDA of vitamin B12, essential for healthy nerves and good amounts of vitamins B1, B2 and B3 too. In combination this...
In this article: Vitamin E, Liver, Selenium, Dried fruit, Vitamin D, Bread, Orange juice, and B vitamins
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San Antonio News | 5 days ago
B-12 deficiency
...supplementation without any problems, although the dose of the oral supplement varies depending on the cause of the deficiency. Vitamin B-12 levels should continue to be monitored periodically by a physician to ensure they remain in a...
In this article: Vitamin B-12 and San Antonio, TX
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Medical News Today | November 20, 2009
Treatment With Folic Acid, Vitamin B12 Associated With Increased Risk Of Cancer, Death
...had an associated increased risk of cancer and death from any cause if they had received treatment with folic acid and vitamin B12, according to a study in the November 18 issue of JAMA. Most epidemiological studies have found inverse...
In this article: Cancer, Vitamin B6, B vitamins, Medical advice, Lung cancer, Homocysteine, Norway, and Bergen, Norway
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MedicineNet | November 19, 2009
Pernicious Anemia
Pernicious Anemia and Vitamin B-12 Deficiency Featured pernicious anemia patient discussions on symptoms of onset of disease "At age 55, I was recently diagnosed with pernicious anemia. I too, was fatigued, off balance at times walking,...
In this article: Pernicious anemia, Vitiligo, Vitamin B-12, Cyanocobalamin, Oxygen, Stomach cancer, Pigmentation disorder, Iron deficiency, H. pylori, and Surgery
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Telegraph.co.uk - Health | November 19, 2009
Health Q&A: Crohn's disease
...small, frequent meals and always chew well. Avoid sugary foods. Ask your GP to test for lactose intolerance, as well as iron and vitamin B12. Low levels of these, which is common with Crohn's, can cause tiredness. Supplement your diet with...
In this article: Crohn's disease, Fruit, Soup, Porridge, Bread, Sweet potato, Chicken, Anti-inflammatory, and Anxiety
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New Kerala | November 17, 2009
Heart patients receiving folic acid treatment 'at increased cancer, death risk'
...extended follow-up. The patients were randomized to receive oral treatment with folic acid, plus vitamin B12, plus vitamin B6, folic acid plus vitamin B12, vitamin B6 alone or placebo. The researchers found that serum folate concentration...
In this article: Cancer, Vitamin B6, B vitamin, Lung cancer, Homocysteine, Bergen, Norway, Haukeland University Hospital, and Washington
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WebMD | November 17, 2009
Folic Acid, B12 May Increase Cancer Risk
...is new evidence that folic acid, taken in large doses, may promote some cancers. Heart patients in Norway who took folic acid and vitamin B12 supplements were found to have a slightly increased risk for cancer and death from all causes,...
In this article: Cancer, Lung cancer, B vitamin, Norway, American Medical Association, Haukeland University Hospital, and U.S.
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Reuters | November 17, 2009
Folic acid supplements raise cancer risk: study
...unlike many countries foods are not enriched with folic acid -- were more likely to die from cancer if they took folic acid and vitamin B12 supplements compared with those who did not take them, Norwegian researchers said on Tuesday. The team...
In this article: Cancer, Lung cancer, Journal of the American Medical Association, B vitamin, Amino acid, Homocysteine, and Spina bifida
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More on Vitamin B12
Description from Wikipedia:
Vitamin B12 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 body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production.
Vitamin B12 is the name for a class of chemically-related compounds, all of which have vitamin activity. It is structurally the most complicated vitamin and it contains the biochemically rare element cobalt. Biosynthesis of the basic structure of the vitamin can only be accomplished by bacteria, but conversion between different forms of the vitamin can be accomplished in the human body. A common synthetic form of the vitamin, cyanocobalamin, does not occur in nature, but is used in many pharmaceuticals, supplements and as food additive, due to its stability and lower cost. In the body it is converted to the physiological forms, methylcobalamin and adenosylcobalamin, leaving behind the cyanide, albeit in minimal concentration. More recently, hydroxocobalamin, methylcobalamin and, adenosylcobalamin can also be found in more expensive pharmacological products and food supplements. The utility of these is presently debated.
Historically, vitamin B12 was discovered from its relationship to the disease pernicious anemia, which is an autoimmune disease that destroys parietal cells in the stomach that secrete intrinsic factor. Intrinsic factor is crucial for the normal absorption of B12, therefore, a lack of intrinsic factor, as seen in pernicious anemia, causes a vitamin B12 deficiency. Many other subtler kinds of vitamin B12 deficiency, and their biochemical effects, have since been elucidated.
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