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Contact your GP if you experience persistent sleep disturbances that coincide with starting B12 supplements, particularly if accompanied by neurological symptoms, mood changes, paradoxical fatigue, or palpitations

Mixing alcohol with the COVID vaccine may increase the risk of experiencing side effects common to both, such as headaches and fatigue

Researchers demonstrated that BPC-157 administration improved the healing course of spinal cord compression injury and promoted functional recovery

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But, beyond these mild effects, no danger is associated with B12 shots