Poison in apples!!!!!!!!
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Solanine is a poisonous substance that occurs naturally in potatoes and other members of the nightshade family, such as tomatoes and eggplants. A very small amount of solanine can be toxic, and in very large doses it can be fatal.

Signs of Solanine:
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In potatoes, the skin will turn green and there will be a very bitter flavor. Symptoms of solanine poisoning include diarrhea and vomiting.