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The biggest risks come from improper technique, not the vitamin itself
Here are the best vitamin B12 injection sites for each method: Subcutaneous B12 injection sites Usually, the best places to give yourself a B12 shot subcutaneously are the abdomen, thigh, and upper arm, as you can see in this illustration: Although not shown above, the buttock is another good site for B12 shots
Safety of Long-Term Weekly Use Is it safe to get a shot every week for months
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In clinical trials with semaglutide injection for weight management, 50 (2.9%) of patients receiving semaglutide tested positive for anti-semaglutide antibodies
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