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To our knowledge, this is the largest study to date regarding the association of serum vitamin B12 levels with obesity in the general population
Shaking creates foam and can damage the peptide bonds
Suspected adverse drug reactions, including possible metformin-associated B12 deficiency, can be reported via the MHRA Yellow Card scheme (yellowcard.mhra.gov.uk)
Mild, transient effects during the first two weeks typically do not require intervention beyond patience
Sometimes too much haemoglobin is made, resulting in polycythaemia a condition in which too many red blood cells are produced
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