What Is Vitamin B12 for Dogs? Chewy How to determine if a dog with EPI needs consistent B12 injections or supplements without expensive bloodwork? Since a lot of you asked why Moos was getting a shot yesterday heres why., Moos has a vitamin B12 deficiency., And if even one other dog is helped by this post, its worth sharing., B12 is essential Vitamin B12 Injections by Animal Wellness Center of Maple Grove Vitamin B12 Injection Benefits for Dogs What Does B12 Injection do for Dogs? (Early access for our Patreon community) Raising Your Pets Naturally with Tonya Wilhelm Should I give my EPI dog B12 shots or supplements?