Medical Definition of Vitamin b 12 deficiency

1. A nutritional condition produced by a deficiency of vitamin b 12 in the diet, characterised by megaloblastic anaemia. Since vitamin b 12 is not present in plants, humans have obtained their supply from animal products, from multivitamin supplements in the form of pills, and as additives to food preparations. A wide variety of neuropsychiatric abnormalities is also seen in vitamin b 12 deficiency and appears to be due to an undefined defect involving myelin synthesis. (12 Dec 1998)

Lexicographical Neighbors of Vitamin B 12 Deficiency

vitamin K2
vitamin K2(35)
vitamin K3
vitamin K4
vitamin K5
vitamin K epoxidase
vitamin K unit
vitamin M
vitamin P
vitamin PP
vitamin R
vitamin V
vitamin a deficiency
vitamin b 12
vitamin b 12 deficiency (current term)
vitamin b complex
vitamin d-binding protein
vitamin d-resistant rickets
vitamin e deficiency
vitamin k deficiency
vitamin pill
vitamin u

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