Which nutrients and supplements can harm the liver?

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Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Vitamin A is one of the most common nutrients that can harm the liver. An excess (typically from supplements) can cause storage of fat in the liver, chronic hepatitis and cirrhosis. Patients with chronic liver disease should consume less than 2500 IU of vitamin A per day in pill form (getting vitamin A through food seems okay).

A list of other nutrients and supplements that have been shown to have toxic effects on the liver:
  1. Nicotinic acid (niacin; Nicolar)
  2. Pennyroyal oil
  3. Senna fruit extracts
  4. Valerian
  5. Iron
  6. Mistletoe
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YOU: The Owner's Manual, Updated and Expanded Edition: An Insider's Guide to the Body that Will Make You Healthier and Younger

Between your full-length mirror and high-school biology class, you probably think you know a lot about the human body. While it's true that we live in an age when we're as obsessed with our bodies as...

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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.