Who should not take vitamin B1 (thiamine) supplements?

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Thiamine supplements are safe for most people, but some people may want to talk with their doctor before taking thiamine. If you're allergic to any ingredient in thiamine, do not take it. Also, if you have brain damage due to thiamine deficiency or if you have Wernicke's disease or Korsakoff syndrome, you may want to talk with your doctor before using thiamine.

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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.