how do i know if i need a b12 injection Can Vitamin Shots Help Me Feel Refreshed B12 Shots for Weight Loss:

Vitamin B12 is absorbed in our body with the help of a protein produced in your stomach called the intrinsic factor

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Contact your doctor immediately if you experience any symptoms of allergic reaction such as itching, swelling, severe dizziness, rash, or difficulty breathing after receiving a B12 shot

Patients with conditions that impair absorption may benefit more from injections, which bypass the digestive system entirely

B12 shots are often recommended when there is a known absorption issue with B12 through the digestive system

Reported or proposed issue Long-term or repeated-cycle effects Evidence source No long-term human trial Known or theoretical