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Vitamin B12

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substance · Score (benefits ÷ risk): Unrated (0 ratings) — needs ≥ 3 ratings

Vitamin essential for nerve health and monoamine metabolism.

Too little may be associated with

Deficiency: fatigue, neuropathy, cognitive and mood decline.

Too much may be associated with

Excess generally excreted; usually safe.

Informational only — not medical advice.

Neurotransmitters

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