are b12 injections better than pills vs Pills: Richmond's Complete Guide The Advantages of B12 Injections

Vitamin B12 is a water-soluble vitamin naturally found in animal products

Walther TC, Chung J, Farese RV

It is found naturally in animal-based foods like fish, meat, poultry, eggs, and dairy products

Yet the consequences are unknown Bioavailability: there are four specific metabolic steps necessary to convert cyanocobalamin into one of the coenzyme forms, which is a clear metabolic disadvantage (3) Utilisation problems: certain hereditary diseases, as well as metabolic disorders, prevent the conversion of cyanocoalamin into the active B12 forms (4) Steals methyl groups: cyanocobalamin requires a methyl group to convert into methylcobalamin, which it takes from the important amino acid S-adenosylmethionine (SAM)

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