b12 injections and nausea Vitamin Injection Side Effects Safety Are Vitamin B12 Shots Right

MTHFR variants like C677T can raise homocysteine and increase demand on the folate and B12 methylation pathway, but they do not by themselves cause deficiency

Last updated on Mar 30, 2026

I have trouble struggling to wake up in the mornings and this b-12 works almost instantly

The enzyme methylmalonyl-CoA mutase uses it to convert methylmalonyl-CoA to succinylcholine CoA (in the synthesis of porphyrin)

Its essential for: Red blood cell formation Neurological function DNA synthesis Metabolism of fats and carbohydrates Energy production Since B12 is naturally found in animal products such as meat, dairy, and eggs, individuals following vegetarian or vegan diets are often more susceptible to deficiencies