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Risks and Side Effects While generally safe, vitamin B12 injections can have side effects or risks, such as: Mild pain, swelling, or redness at the injection site Dizziness, headache, or nausea Allergic reactions (rare) Hypokalemia (low potassium levels) in individuals with severe deficiency undergoing treatment People with allergies to cobalt or who have Lebers disease should avoid B12 injections unless specifically advised by a doctor

To protect muscle during treatment: Encourage strength training and physical activity Ensure adequate protein intake Use tools to monitor body composition, not just weight This helps patients maintain functionality while still achieving the metabolic benefits of treatment

Limited Clinical Data: Theres generally less clinical data available on compounded medications, which could affect the predictability of treatment outcomes and side effects

Stimulates the formation of new blood vessels