Doctors say man developed hepatitis after energy drink binge

GAINESVILLE, FL (NBC News) — Doctors in Florida say the man developed liver failure after consuming too many energy drinks.

The 50-year-old man told doctors he drank four to five energy drinks every day for three weeks, but soon began to develop abdominal pain, nausea, vomiting and dark urine.

A biopsy of his liver showed severe hepatitis from the excessive consumption of niacin.

Each bottle of his energy drink contained 40mg of niacin, which is 200 percent of the recommended daily value.

The man was monitored closely by doctors and discontinued all use of energy drinks. provides commenting to allow for constructive discussion on the stories we cover. In order to comment here, you acknowledge you have read and agreed to our Terms of Service. Commenters who violate these terms, including use of vulgar language or racial slurs, will be banned. Please be respectful of the opinions of others and keep the conversation on topic and civil. If you see an inappropriate comment, please flag it for our moderators to review.

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