Grayanotoxins: The Potent Neurotoxins Behind “Mad Honey” Grayanotoxins are a group of potent, naturally occurring neurotoxins found in a variety of plants, most notably in species of the Rhododendron, Kalmia, and Leucothoe genera, all belonging to the Ericaceae family. These toxins are infamous for their ability to contaminate honey, producing what is commonly known as […]