Vitamin B12 exists in several forms and contains the mineral cobalt, so compounds with vitamin B12 activity are collectively called cobalamins
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J Neurosci 28, 465472 (2008)
These changes can culminate in symptoms of fatigue through the action of various cytokines which act on a fatigue nucleus or a collection of neurons dedicated to inhibiting energy-consuming activities that promote focusing on available energy stores for healing (25)
Tablets just as effective Over-the-counter B12 tablets are a fraction of the cost of shots, and have been shown in a British-Canadian study to work just as well for most people, although some people with digestive conditions may have difficulty absorbing the vitamin in tablet form
Traditionally labeled as a liver enzyme, GGT is often ignored unless it is markedly elevated or paired with abnormal AST and ALT levels
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