- Also known as: cobalamin deficiency
Causes
Symptoms
What is vitamin B12 & how does it work?Vitamin B12, required for proper brain function and a host of chemical reactions within the body, is found naturally only in animal foods. But if the typical vitamin B12 sources are not part of your regular diet or if your body has difficulty absorbing enough B12, there are other options. How B12 works in the bodyhealth.harvard.eduTreatment
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See all on WikipediaVitamin B12 - Wikipedia
Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism. It is one of eight B vitamins. It is required by animals, which use it as a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism. It is important in the normal functioning of the nervous system via its … See more
Vitamin B12 is a coordination complex of cobalt, which occupies the center of a corrin ligand and is further bound to a benzimidazole ligand and adenosyl group. A number of related species are known and these behave … See more
Some research shows that most people in the United States and the United Kingdom consume sufficient vitamin B12. However, other research … See more
H2-receptor antagonists and proton-pump inhibitors
Gastric acid is needed to release vitamin B12 from protein for … See moreVitamin B12 deficiency can potentially cause severe and irreversible damage, especially to the brain and nervous system. Deficiency at levels only slightly lower than normal … See more
Treatment of deficiency
Severe vitamin B12 deficiency is initially corrected with daily intramuscular injections of 1000 μg of the vitamin, followed by maintenance via monthly injections of the same amount or daily oral dosing of 1000 μg. … See moreBacteria and archaea
Vitamin B12 is produced in nature by certain bacteria, and archaea. It is synthesized by some bacteria in the gut microbiota in humans and other animals, but it has long been thought that humans cannot absorb this … See moreWikipedia text under CC-BY-SA license Vitamin B12 deficiency - Wikipedia
Vitamin B12 deficiency, also known as cobalamin deficiency, is the medical condition in which the blood and tissue have a lower than normal level of vitamin B12. Symptoms can vary from none to severe. Mild deficiency may have few or absent symptoms. In moderate deficiency, feeling tired, headaches, soreness of the tongue, mouth ulcers, breathlessness, feeling faint, rapid heartbeat, low blood pressure
Wikipedia · Text under CC-BY-SA licenseCyanocobalamin - Wikipedia
WEBCyanocobalamin is a form of vitamin B. 12 used to treat and prevent vitamin B. 12 deficiency except in the presence of cyanide toxicity. [ 7][ 8][ 2] The deficiency may occur in …
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Vitamin B-12 - Mayo Clinic
WEBJun 28, 2024 · Overview. Vitamin B-12 (cobalamin) plays an essential role in red blood cell formation, cell metabolism, nerve function and the production of DNA, the molecules …
B vitamins - Wikipedia
WEBB vitamins. B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism and synthesis of red blood cells. [ 1][ 2] They are a chemically diverse class …
Hydroxocobalamin - Wikipedia
WEBHydroxocobalamin, 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 …
Vitamin B12 - Simple English Wikipedia, the free encyclopedia
WEBVitamin B12 (or vitamin B-12) is also called cobalamin. It has a key role in the normal functioning of the brain and nervous system, and in the formation of blood. It is one of …
Vitamin B12 - Health Professional Fact Sheet
WEBVitamin B12 is a water-soluble vitamin that is naturally present in some foods, added to others, and available as a dietary supplement and a prescription medication. Because vitamin B12 contains the mineral cobalt, compounds with vitamin B12 activity are collectively called cobalamins [ 1 ].
Vitamin B12 total synthesis - Wikipedia
WEBVitamin B 12, C 63 H 88 CoN 14 O 14 P, is the most complex of all known vitamins. Its chemical structure had been determined by x-ray crystal structure analysis in 1956 by the research group of Dorothy Hodgkin ( …
Vitamin B12 – The Nutrition Source
WEBDeficiency. Measuring vitamin B12 in the blood is actually not the best way to determine whether someone is deficient, as some people with a deficiency can show normal B12 …
Cobalamin biosynthesis - Wikipedia
WEBCobalamin (vitamin B 12) is the largest and most structurally complex vitamin. It consists of a modified tetrapyrrole, a corrin, with a centrally chelated cobalt ion and is usually found …
Vitamin B12 | Sources, Deficiency & Health Effects
WEB16 rows · Aug 2, 2024 · vitamin B12, a complex water-soluble organic compound that is essential to a number of microorganisms and animals, including humans. Vitamin B 12 aids in the development of red blood …
Vitamin B12: What Are the Health Benefits?
WEBNov 6, 2023 · Takeaway. Vitamin B12 is important for the health of your nervous system and your red blood cells. It can be found in many animal products and fortified foods. In …
Vitamin B-12: Benefits, foods, deficiency, and supplements
WEBDec 8, 2023 · Benefits. Dmitry Ageev/EyeEm/Getty Images. Vitamin B12 is crucial to various bodily processes, including: normal functioning of the brain and nervous system. …
Vitamin B12 Dosage: How Much Should You Take per Day?
WEBFeb 6, 2024 · Vitamin B12 is a water-soluble nutrient that’s required for many crucial processes in your body. The ideal dose of vitamin B12 varies based on your sex, age, …
Health Benefits of Vitamin B12, Based on Science
WEBJan 30, 2024 · Vitamin B12, also known as cobalamin, is an essential vitamin that your body needs but cannot produce. It’s found naturally in animal products, but also added to certain foods and available as...
Vitamin B12 Deficiency: Symptoms, Causes & Treatment
WEBAug 1, 2024 · Vitamin B12 is an important nutrient that helps your body make red blood cells and DNA, the genetic material in all of your cells. Untreated, vitamin B12 deficiency …
Vitamin B12 | The BMJ
WEBNov 20, 2023 · Vitamin B 12 (cobalamin) is a water soluble vitamin required for several physiological processes, including normal nervous system functioning, and red blood …
WEBVitamin B12 is a nutrient that helps keep your body’s blood and nerve cells healthy and helps make DNA, the genetic material in all of your cells. Vitamin B12 also helps prevent megaloblastic anemia, a blood condition that makes people tired and weak. How much vitamin B12 do I need? The amount of vitamin B12 you need each day depends on your …
What Happens to Your Body When You Take Vitamin B12
WEBJul 10, 2024 · Sufficient vitamin B12 is necessary for producing healthy red blood cells and preventing megaloblastic anemia, a type of anemia that causes large, underdeveloped …
Vitamin B12 Foods: 12 Great Sources - Healthline
WEBFeb 29, 2024 · 1. Animal liver and kidneys. Organ meats are some of the most nutrient-packed foods. The liver and kidneys, especially from lamb, are rich in vitamin B12. A 3.5 …
The A list for vitamin B-12 sources - Harvard Health
WEBAug 24, 2016 · Vitamin B12, required for proper brain function and a host of chemical reactions within the body, is found naturally only in animal foods. But if the typical …
Vitamin B12 Deficiency Anemia | Johns Hopkins Medicine
WEBVitamin B 12 deficiency anemia is a condition in which your body does not have enough healthy red blood cells, due to a lack (deficiency) of vitamin B 12. This vitamin is needed …
Vitamin B12 Deficiency: Causes, Symptoms, and Treatment
WEBJun 29, 2024 · Written by Kathryn Whitbourne. What Is Vitamin B12? Vitamin B12 Benefits. Vitamin B12 Dosage. Vitamin B12 Foods. 11 min read. What Is Vitamin B12? Vitamin …
Foods High in B12: Meat, Dairy, and Vegan-Friendly - Verywell …
WEBAug 8, 2024 · Red Meat. Red meats like beef and pork are excellent sources of vitamin B12. Four ounces of 80% lean ground beef provides about 2.42 micrograms of vitamin B12, …
Methylcobalamin vs. Cyanocobalamin: What’s the Difference?
WEBApr 14, 2023 · Vitamin B12, also known as cobalamin, is an important water-soluble vitamin involved in red blood cell production, brain health, and DNA synthesis ( 1 ). A deficiency …
12 Signs You're Deficient in Vitamin B12 (And How to Fix It)
WEB3 days ago · The physical symptoms of vitamin B 12 deficiency are: Weakness and fatigue. Pallor. State of confusion, irritability, or depression. Decline in concentration. Weight …
Important facts about vitamin B12 deficiency - MSN
WEBB12 is an important vitamin that your body needs but can't produce. It helps make DNA, nerve and blood cells, and is crucial for a healthy brain and immune system. Found …
