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Common side effects include redness, swelling or pain at the injection site, mild diarrhoea, itching, and a feeling of swelling all over the body

[111] The microbiological assay has been the most commonly used assay technique for foods, utilizing certain vitamin B 12 -requiring microorganisms, such as Lactobacillus delbrueckii subsp

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Methionine is then used to form S-adenosylmethionine (SAMe), which is a universal methyl donor essential for the synthesis of lipids, proteins, DNA, and the formation of myelinthe protective sheath around nerve cells