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Its often used in medical spas or clinics for quick energy boosts or in severe deficiency states
Common signs of possible vitamin B12 deficiency can include fatigue or weakness, brain fog or memory issues, shortness of breath, pale or jaundiced skin, and tingling or numbness in the hands and feet
However, supplements don't seem to help
Independent replication of the foundational findings across multiple research groups provides cross-laboratory credibility for the core mechanism observations
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