vitamin b12 injections benefits side effects Feeling worse after Injection: Answering concerns Vitamin B12 Injection: Uses, Benefits,

Diet & Exercise Recommendations : To enhance the effectiveness of the injections, we recommend following a low-calorie diet and engaging in 30 minutes of walking each day

For those dealing with skin issues, hair thinning, or brittle nails, B12 injections may provide the necessary boost for healthier, more vibrant appearance

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Science 325 , 477481 (2009)

Bokov AF, Garg N, Ikeno Y, Thakur S, Musi N, DeFronzo RA, Zhang N, Erickson RC, Gelfond J, Hubbard GB, Adamo ML, Richardson A

Also theres a possibility that the needle hit a larger blood vessel which has bled into the muscle thus causing pain and stiffness