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For example, to make red blood cells, you need B12 and B9 (folate)

Other reported effects include: Headaches and dizziness Nausea and gastrointestinal discomfort Allergic reactions to B12 formulations (rare) If you experience symptoms suggesting a severe allergic reaction (difficulty breathing, severe rash, swelling of face/throat), seek emergency medical attention immediately by calling 999 or attending A&E

Research suggests it promotes fat loss while preserving lean mass, which aligns well with Retatrutides metabolic profile

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