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How to Administer Injections Safely Administering a Vitamin B12 injection involves a quick subcutaneous (under the skin) or intramuscular shot
Other GLP-1 and dual-agonist agents, including tirzepatide, are also in wide use, though not every GLP-1 on the market carries an FDA weight loss indication
The treatment is not painful
For example, B12 helps convert food into glucose rather than storing it as fat, which boosts energy levels
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