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This creates S-adenosylmethionine (SAM), which works as the universal cofactor for most biological methylation reactions [19]

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Key benefits include: Sustained energy : Many patients notice improved stamina and reduced fatigue

We used a Mendelian randomization design to test whether this relation might be causal

That's a meaningful distinction when you consider what happens the moment you stop using the drug and blood flow returns to normal

In addition to this, many people have problems metabolizing B12 in low-quality forms like cyanocobalamin due to defects in the MTHFR gene (1) (as many as 40% of people have THIS problem!)