Essential for energy production and a healthy nervous system. Vitamin b-12 is important for the metabolic pathways which work to release energy from fats and carbohydrates. 1 Pharmacist recommended. No artificial flavors, preservatives, yeast, starch or gluten. This statement has not been evaluated by the food and drug administration. This product is not intended to diagnose, treat, cure or prevent any disease. Based on pharmacy times survey.