Raw cashews contain urushiol, the same toxin found in poison ivy or poison oak. “If you were to handle or consume cashews in their raw form, you would likely experience a reaction similar to that caused by poison ivy, such as an itchy and inflamed skin rash that may cause a burning sensation,” Healthline writes. However, cashews labeled as raw at the grocery store have been shelled and heat-treated to remove any urushiol residue, making them safe. Note: Mango skin also contains urushiol.
7. Nutmeg: Myristicin