vitamin B12
noun
1
: a complex cobalt-containing compound C63H88CoN14O14P that occurs especially in liver, is essential to normal blood formation, neural function, and growth, and is used especially in treating pernicious and related anemias and in animal feed as a growth factor
called also cyanocobalamin
2
: any of several compounds similar to vitamin B12 in action but having different chemistry
Examples of vitamin B12 in a Sentence
Recent Examples on the Web
The beverage also has some of the highest amounts of vitamin B12.
—
Cynthia Sass, Mph, Health, 21 Apr. 2024
Along with methylfolate, Thorne also provides 600 mcg of vitamin B12 as methylcobalamin—the active form of vitamin B12 naturally found in food.
—Lainey Younkin, Ms, Rd, Verywell Health, 22 Mar. 2024
Studies show recreational whippet use can lead to adverse health outcomes, like vitamin B12 inactivation and deficiency.
—Arpan Lobo, Detroit Free Press, 13 Mar. 2024
For example, taking high doses of folate can mask a vitamin B12 deficiency, while taking high doses of magnesium can lead to GI upset, nausea, irregular heartbeat, and cardiac arrest.
—Erika Prouty, Verywell Health, 11 Apr. 2024
Eggs are choc full of protein, vitamin A, vitamin B12 and fatty acids, according to the American Kennel Club.
—Olivia Munson, USA TODAY, 16 Feb. 2024
Mild cognitive impairment can sometimes be caused by easily addressable factors, such as medication side effects, thyroid dysfunction or vitamin B12 deficiency.
—Soeren Mattke, Discover Magazine, 28 Mar. 2024
Also, a deficiency in folate or vitamin B12 can cause megaloblastic anemia.
—Lainey Younkin, Ms, Rd, Verywell Health, 22 Mar. 2024
Plus, taking too much folate can mask a vitamin B12 deficiency.
—Lainey Younkin, Ms, Rd, Verywell Health, 22 Mar. 2024
Cynthia Sass, Mph, Health, 21 Apr. 2024
Along with methylfolate, Thorne also provides 600 mcg of vitamin B12 as methylcobalamin—the active form of vitamin B12 naturally found in food.
—Lainey Younkin, Ms, Rd, Verywell Health, 22 Mar. 2024
Studies show recreational whippet use can lead to adverse health outcomes, like vitamin B12 inactivation and deficiency.
—Arpan Lobo, Detroit Free Press, 13 Mar. 2024
For example, taking high doses of folate can mask a vitamin B12 deficiency, while taking high doses of magnesium can lead to GI upset, nausea, irregular heartbeat, and cardiac arrest.
—Erika Prouty, Verywell Health, 11 Apr. 2024
Eggs are choc full of protein, vitamin A, vitamin B12 and fatty acids, according to the American Kennel Club.
—Olivia Munson, USA TODAY, 16 Feb. 2024
Mild cognitive impairment can sometimes be caused by easily addressable factors, such as medication side effects, thyroid dysfunction or vitamin B12 deficiency.
—Soeren Mattke, Discover Magazine, 28 Mar. 2024
Also, a deficiency in folate or vitamin B12 can cause megaloblastic anemia.
—Lainey Younkin, Ms, Rd, Verywell Health, 22 Mar. 2024
Plus, taking too much folate can mask a vitamin B12 deficiency.
—Lainey Younkin, Ms, Rd, Verywell Health, 22 Mar. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'vitamin B12.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Vitamin B12.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vitamin%20B12. Accessed 3 May. 2024.
Copy CitationMedical Definition
vitamin B12
noun1
: a complex cobalt-containing compound C63H88CoN14O14P found in animal products (as meat and eggs) that is essential to normal blood formation, neural function, and growth and is used especially in treating pernicious and related anemias and in animal feed as a growth factor
called also cyanocobalamin
2
: any of several compounds similar to vitamin B12 in action but having different chemistry
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