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Brown adipose tissue, a new role in humans
Dietary causes It is unusual to lack vitamin B12 if you eat a normal balanced diet
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Hydroxocobalamin is the standard UK preparation, administered intramuscularly for conditions like pernicious anaemia and gastrointestinal malabsorption B12 acts as a cofactor in DNA synthesis, red blood cell formation, and nervous system function, supporting energy metabolism pathways Common side effects include injection site reactions, mild gastrointestinal upset, and temporary urine discolouration, with serious reactions being rare NHS access requires GP assessment with blood tests
Both can prevent B12 deficiency, but methylcobalamin should be combined with adenosylcobalamin for best results
Yes, its essential for red blood cell formation
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