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Key considerations for oral formulations: Convenient: Familiar to most patients and easily integrated into daily routines without clinic visits
NICE guidance emphasises that treatment should not be delayed whilst awaiting confirmatory blood results if clinical suspicion is high
In fact, some athletes take supplements of vitamin B12 before big games or competitions
PYY suppressed
JNCI: J
Research shows that B12 injections released into the blood boost energy and metabolism for several days or even weeks
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