When B12 levels are too low, the nerves can become damaged, leading to sensations like numbness, tingling, or a pins and needles feeling in the hands, feet, or legs
[1] [14] However, this doesn't mean all doses are completely without risk of adverse effects or interactions (for example, chloramphenicol may reduce the haematological response to B12)
This technique verifies that the molecular weight of the synthesized peptide matches its theoretical mass, ensuring the correct amino acid sequence and copper chelation
These active forms are bioidentical to the B12 present in the human body
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This explains why some people need surprisingly high doses despite normal absorption