Compounded Methylcobalamin (Vitamin B12) Injection, 5mg mL Do you ever feel: Constantly tired or run down Forgetful or foggy Low on energy, even after rest You might be low in Vitamin B12an essential nutrient your body What to do about B12 deficiency on a vegan diet? Do you follow a vegetarian 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