What is B3 Toxicity? Causes, Symptoms, and Treatment
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4 min read
Approximately 5-20% of people who take high-dose niacin for medical reasons report stopping due to side effects, a common sign of approaching B3 toxicity. Known as niacin toxicity, this condition is caused by excessive supplemental intake of vitamin B3, with symptoms ranging from harmless skin flushing to potentially severe liver damage.
