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In the UK, B12 injections primarily use hydroxocobalamin, delivered intramuscularly, bypassing the gastrointestinal tract to ensure rapid absorption
While it can vary from case to case, experts recommend taking oral vitamin B12 pills every day
The researchers compared the three primary B12 delivery methods and found the following mean increases in serum B12 levels: A p-value of 0.270 means there is no statistically meaningful difference between the three methods
If you are deficient in B12, a course of injections or high dose oral supplementation may be advised
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