Definitions for vitamin b 12
This page provides all possible meanings and translations of the word vitamin b 12
U.S. National Library of Medicine
Vitamin B 12
A cobalt-containing coordination compound produced by intestinal micro-organisms and found also in soil and water. Higher plants do not concentrate vitamin B 12 from the soil and so are a poor source of the substance as compared with animal tissues. INTRINSIC FACTOR is important for the assimilation of vitamin B 12.
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