Signs of Vitamin B12 Deficiency Common Symptoms: Anemia Low red blood cells = poor oxygen flow. Tingling Hands & Feet A sign your nerves are struggling. How Often Can I Take B12 Injections? Identifying the early warning signs of vitamin B12 deficiency is crucial for maintaining overall health. Common symptoms include fatigue, pale skin, memory difficulties, and anemia. #deficiency #B12Boost Are you experiencing any of these signs of vitamin B12 deficiency? Check out the list below to see if you're at risk. Remember, vitamin B12 is crucial for your overall health