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Please note that the other tests mentioned do not directly measure vitamin B12 levels but instead help assess factors related to B12 deficiency or excess
Its action is specific to adipocytes (fat cells) via beta-3 adrenergic receptors and does not affect anabolic pathways, protein synthesis signaling, or IGF-1 levels
For example, did you have any numbness, loss of coordination, extreme tiredness, weakness, or muscle stiffness
But most people already get enough B vitamins in their diet
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