IV Nutrient Therapy Energy Boost: Vitamin B12 is essential for maintaining proper energy levels. An early sign of vitamin B12 deficiency is fatigue since this vitamin is involved in your body’s energy production. People with Crohn’s disease, celiac disease, gastritis, and HIV are prone to B12 deficiency. Visit Advanced Health Solutions – GA Spine & Disc at (770) 212-3991 if you want to learn more about it.