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B12 is given as an intramuscular injection , usually into your upper arm or buttock
If the injection interacts with your medications
Reported effects May support reductions in fat mass and preserve lean muscle
If low B12 damages this sheath, nerve signals can misfire, leading to symptoms like tingling, numbness, or that awful pins and needles feeling
Weeks 46 in informal reports : some community accounts describe early waist or body-fat changes, but other causes cannot be ruled out
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