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This is often called a loading dose phase, and its purpose is to quickly raise the B12 levels in your body and help you start feeling better
Unlike oral supplements, which have to go through the digestive system and can be affected by factors like stomach acid and digestive enzymes, injections deliver the vitamin directly into your bloodstream
Rest assured, severe allergic reactions are highly uncommon, and any discomfort or concerns you might be feeling are likely transitory
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