You should also check with a medical provider prior to getting B12 injections if you are pregnant or breastfeeding
In humans, cyanocobalamin must undergo intracellular enzymatic conversion to the active coenzyme formsmethylcobalamin and adenosylcobalaminwhich, depending on the pH environment, can interconvert with hydroxocobalamin (Gherasim et al., 2013), the most common B12 form in both food and human plasma (Obeid et al., 2015)
NNMT is an enzyme involved in nicotinamide metabolism and methylation processes that influence numerous physiological pathways throughout the body
These dietary choices limit natural sources of B12 to animal products, leading to deficiencies in up to 90% of people adhering to these diets
When the body is deficient in vitamin B12, it cannot produce the number of healthy red blood cells for the body to function properly