How Much Vitamin A Is Toxic?
How Much Vitamin A Is Toxic? Too much vitamin A can be harmful. Even a single large dose — over 200,000 mcg — can cause: Nausea. Vomiting. Can you get vitamin A toxicity? Too much vitamin A can be harmful. Even a single large dose — over 200,000 mcg — can cause: Nausea. Vomiting. Can