Mad honey comes from bees that forage on rhododendrons and mountain laurel, and it’s full of poisonous grayanotoxins. It causes dizziness, nausea and vomiting, convulsions, cardiac disorders, and more. Symptoms last for twenty-four hours, and although rarely, if left untreated, can be fatal. It has been used in biological warfare as far back as 399 B.C., to make Xenophon and the Greek army retreat from Persia. During the Third Mithridatic War in 65 B.C., citizens of Pontus placed mad honey on the route taken by Pompey’s soldiers, and when the enemy helped themselves to the treat, they were
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