As I elaborate on in my video The Symptoms of Vitamin B12 Deficiency , these include: Abdominal distention Chronic diarrhea Shortness of breath Swollen, red, painful feet Skin darkening Bilateral useless hand syndrome Numbness and tingling in the hands and feet Muscle cramps Dizziness Cognitive disturbances Difficulty walking Erectile dysfunction Fatigue Depression Psychosis Coma Blindness Vitamin B12 Deficiency Treatment Is A Vitamin B12 Shot Better Than Taking B12 Orally
The two compounds produce results on different timescales, and the combined effect unfolds in stages
Tolerance and response: a provider adjusts based on how a patient actually responds over time, which no static number can anticipate
Vitamin B12 injection effects can include: Soreness or slight bruising where the needle goes in A warm feeling right after the injection Mild headache in some people, which usually passes quickly Rare allergic reactions, which is why a health check happens first Vitamin B12 injection painful is a common worry, but most people describe it as a quick pinch rather than anything severe
If you have a thyroid autoimmune condition like Hashimotos, B12 shots can prevent and reverse digestive autoimmunity and low stomach acid