Vitamin A: Vitamin a in high doses is toxic to the liver.
Answered 1/13/2019
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Vitamins A & B3: Vitamin A in high doses is a direct toxin. Excess vitamin A is stored in stellate cells in the liver and accumulation can lead to their activation and hypertrophy, excess collagen production, fibrosis and liver injury. Niacin Vitamin B3 hepatotoxicity appears to be dose dependent and more common with the sustained release form of the drug. https://livertox.nlm.nih.gov/Niacin.htm
Answered 11/10/2018
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