Do you follow a vegan diet? Did you know that vitamin b12 is mainly present in animal based products so those following a strict plant based are more likely to be deficient in vitamin Cyanocobalamin Vitamin B12 Injection 1000 mcg Mountainside Medical Hydroxocobalamin Injection: Vitamin B12 for Energy & Anemia Mountainside Medical Methylcobalamin Injection (Vitamin B12) Empower Pharmacy B12 Boost energy + metabolism B 12 injections WithCare Clinic