intrinsic factor test after b12 injection More blood results (prior to injections) : r/B12_Deficiency 🧬 Gastric Intrinsic Factor &

If these side effects persist for a longer duration, inform your doctor

Causes and Symptoms of B12 Deficiency Deficiency can arise from: Poor dietary intake Malabsorption issues (e.g., pernicious anemia, atrophic gastritis) Gastrointestinal surgeries or disorders (e.g., Crohns disease) Certain medications affecting stomach acid or absorption Symptoms of deficiency include fatigue, weakness, numbness or tingling in hands and feet, memory difficulties, mood changes, and in severe cases, neurological damage

Side Effects and Safety When given as a shot: Vitamin C is likely safe for most people when given as a shot into the muscle by a health care provider

For a 300-pound person, that is about 15 to 24 pounds in the first 3 months, which is significant but far short of 50 pounds