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Vitamin B12 shot side effects Most people tolerate vitamin B12 injections well, but possible side effects include: Mild: soreness or redness at injection site, mild diarrhea, nausea, headache, itching Rare but serious: allergic reactions (rash, swelling, difficulty breathing), low potassium (hypokalemia), dizziness or heart rate changes Get emergency medical help if you have signs of an allergic reaction to Vitamin B12: hives
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It is a synthetic small-molecule research compound
Does it reproduce every benefit of exercise
Supports Red Blood Cell Production and Prevents Anaemia B12 is key in the production of red blood cells, which carry oxygen throughout the body
This keeps vitamin B12 levels stable
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