symptoms worse after b12 injections Why do I feel a injection? Darryl - By now you

While oral supplements are available, B12 injections offer better absorption, especially for those with gastrointestinal issues or poor nutrient absorption

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Vitamin B12 injection effects can include: Soreness or slight bruising where the needle goes in A warm feeling right after the injection Mild headache in some people, which usually passes quickly Rare allergic reactions, which is why a health check happens first Vitamin B12 injection painful is a common worry, but most people describe it as a quick pinch rather than anything severe