b12 injection overdose symptoms Feeling worse after Injection: Answering concerns Can You Take Too Much

Some individuals may have difficulty maintaining adequate B12 levels due to diet, stress, medications, or absorption issues

Neither approach helps you make informed decisions about your research

We prefer subcutaneous, because it is painless, effective, very easy to do by yourself, and carries no risk of nerve injury

Signs of an allergic reaction can include itchiness, a rash, hives, chest tightness, shortness of breath and swelling of the throat, lips, mouth or tongue

Post-Surgery Patients : People who have undergone intestinal surgery, including weight loss surgery (like gastric bypass), may have reduced capacity to absorb B12

John Myers at Johns Hopkins University in the 1960s