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Even some of the nutrients you talk about being healthy can be toxic. For example, what happens to the liver if you take 25,000IU daily of real vitamin A for a while. And yes it does happen. They even sell 25,000IU vitamin A softgels.
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Will you also be in danger of liver toxicity if you take 25,000 IU of Beta Carotene (Pro Vitamin A) daily or does that apply only to real vitamin A?
Only with true vitamin A. With beta carotene the body only converts what it needs in to vitamin A.