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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
The long-term effects on humans remain unknown
You can find Vitamin B12 naturally in animal products like clams, trout, salmon, and animal liver
May influence methylation and metabolic pathways
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