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Q: How quickly will I feel results from B12 injections
A provider will typically: Ask about your symptoms and medical history Request a recent blood test to check B12 levels Evaluate whether injections are appropriate If B12 shots are recommended, the provider can issue a prescription, which you can fill at a local pharmacy or through a telehealth pharmacy that ships to you
Thieme, ISBN 3-13-508601-1 al
A peer-reviewed study by the National Institutes of Health shows that B12 absorption depends on the presence of intrinsic factors in the stomach
In such cases, B12 injections bypass the gastrointestinal tract, directly increasing vitamin levels and helping alleviate symptoms like fatigue and neurological issues
