Vitamin A can cause fat storage in the liver, chronic hepatitis and cirrhosis. Patients with chronic liver disease should consume less than 2,500 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:
- Nicotinic acid (niacin; Nicolar)
- Pennyroyal oil
- Senna fruit extracts
- Valerian
- Iron
- Mistletoe
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