Key Takeaways

Vitamin B12 is essential and usually obtained from a balanced diet, but some people may need supplements.

Evidence for B12 supplements improving heart or other long-term health outcomes is limited.

Check with your healthcare provider before starting any supplements.

Feeling tired, foggy, or low on energy? Vitamin B12 could be the missing piece. Here’s what it does for your body and mind.

1. Boosts Your Brain, Mood, and Energy

Vitamin B12 helps your nervous system function properly, which supports brain health, mood, and energy levels.

Getting enough B12 , especially if you are deficient, can help prevent fatigue, irritability, and cognitive issues often associated with deficiency.

Most people get enough B12 from their diet, but some may need supplements to maintain

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