Vitamin B12: How Frequently Should I Get It? URBAN Medical Fishersville, VA and Gilbert, AZ How Can Vitamin B12 Shots Help Me Feel Refreshed Dr. Nasseri How Often Should You Get B12 Injections? Infusion For Health Main benefits of B12 injections 1) Increased energy & reduced fatigue B12 helps convert food into usable energy Deficiency often causes tiredness, weakness, and low stamina 2) Healthy red blood cells Prevents Who Needs B12 Injections, How Much and How Often? InVita Wellness