GNC METHYL B-12 2500Boost your overall health and wellness with GNC Methyl B 12 2500 mcg, a high quality dietary supplement designed to support energy production, cardiovascular health, and neurological function. Formulated with an active form of Vitamin B 12 known as methylcobalamin, this supplement is readily absorbed by the body for optimal effectiveness. Vitamin B 12 plays a crucial role in the conversion of food into cellular energy, making it an essential nutrient