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What are the risks of vitamin B12 deficiency?

Vitamin B12 deficiency can cause symptoms including anemia (too few red blood cells), fatigue, weakness and neurological problems such as tingling and numbness in toes and fingers. There is also some preliminary evidence linking low levels of vitamin B12 with increased risk for heart disease, stroke and dementia, although more study is needed to confirm these findings. Talk to your doctor about your vitamin B12 needs before taking vitamin B12 supplements or any dietary supplement.

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Who should not take B12?
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Should I take vitamin B12 alone or with other B vitamins?
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What Are the Symptoms of Vitamin B12 Deficiency?
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.