1 article tagged with "B12"
B vitamins are a family of eight water-soluble nutrients that serve as essential cofactors in over 100 enzymatic reactions — from converting food into cellular energy to synthesizing neurotransmitters, building myelin sheaths around nerves, and regulating homocysteine for cardiovascular protection. This complete guide covers every B vitamin individually, explains methylated forms and the MTHFR polymorphism affecting 40% of the population, provides evidence-based dosing, and reviews the best supplements.
