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The Long-Term Timeline: 2 to 3 Months and Beyond The most lasting benefits are structural and take time, especially where the nervous system is concerned
Vitamin B12 functions as a cofactor for two essential enzymes: methionine synthase (involved in homocysteine metabolism and DNA synthesis) and methylmalonyl-CoA mutase (crucial for fatty acid and amino acid metabolism)
After injecting, wait 5-10 seconds before withdrawing the needle to ensure complete delivery
Nature 493 , 226230 (2013)
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