US National Library of Medicine
Methionine adenosyltransferases combines methionine, water, and adenosine triphosphate (ATP) to produce S-adenosylmethionine, pyrophosphates, and inorganic phosphates
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The AAFP advises that injectable therapy leads to more rapid improvement and should be considered in patients with severe deficiency or severe neurologic symptoms (Langan RC, Goodbred AJ, 2017)
The injections bypass the digestive system, allowing for direct absorption into the bloodstream, which is particularly beneficial for individuals with absorption issues
In a laboratory context, this information is provided for comparative and educational purposes only