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
Tempeh is also highly digestible compared to other soybean products because the fermentation enables nutrients such as vitamin B12 and calcium to become more soluble.
—
Joe Sevier, Bon Appétit, 21 Dec. 2024
The bird’s dark meat is high in vitamin B12, which is only found naturally in animal products.
—Caroline Hopkins Legaspi, New York Times, 25 Nov. 2024
One study found that low vitamin B12 levels and high vitamin B9 levels were associated with a higher risk of cognitive impairment.
—Kirstyn Hill, Pharmd, Mph, Health, 30 Oct. 2024
The most common causes include Kawasaki disease, scarlet fever, toxic shock syndrome, and vitamin B12 or folic acid deficiency.
—Lindsay Curtis, Health, 24 Oct. 2024
Low vitamin B12 levels can contribute to elevated homocysteine, an amino acid.
—Allison Herries, Verywell Health, 1 Aug. 2024
For example, meat contains not only protein, but also iron, zinc, and vitamin B12.
—Caroline Tien, SELF, 22 Nov. 2024
Aim for foods high in potassium, calcium, vitamin D, and vitamin B12.
—Sarah Jividen, Health, 26 Oct. 2024
These can include thiamine, vitamin B12, iron, and folate.
—Amber J. Tresca, Verywell Health, 11 Oct. 2024
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Joe Sevier, Bon Appétit, 21 Dec. 2024
The bird’s dark meat is high in vitamin B12, which is only found naturally in animal products.
—Caroline Hopkins Legaspi, New York Times, 25 Nov. 2024
One study found that low vitamin B12 levels and high vitamin B9 levels were associated with a higher risk of cognitive impairment.
—Kirstyn Hill, Pharmd, Mph, Health, 30 Oct. 2024
The most common causes include Kawasaki disease, scarlet fever, toxic shock syndrome, and vitamin B12 or folic acid deficiency.
—Lindsay Curtis, Health, 24 Oct. 2024
Low vitamin B12 levels can contribute to elevated homocysteine, an amino acid.
—Allison Herries, Verywell Health, 1 Aug. 2024
For example, meat contains not only protein, but also iron, zinc, and vitamin B12.
—Caroline Tien, SELF, 22 Nov. 2024
Aim for foods high in potassium, calcium, vitamin D, and vitamin B12.
—Sarah Jividen, Health, 26 Oct. 2024
These can include thiamine, vitamin B12, iron, and folate.
—Amber J. Tresca, Verywell Health, 11 Oct. 2024
Dictionary Entries Near vitamin B12
Cite this Entry
“Vitamin B12.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vitamin%20B12. Accessed 3 Jan. 2025.
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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