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Should I ask my doctor before taking vitamin B3?

Always check with your doctor before taking vitamin B3, also known as niacin. You shouldn't use this drug if you have certain health conditions, such as liver disease, ulcers or allergies to nicotinic acid. If you're pregnant or breastfeeding, avoid vitamin B3 supplements unless your physician advises otherwise. If you notice any side effects from taking vitamin B3, like flushing or dizziness, discuss these with your doctor.

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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.