23 October 2013, NPR, Rae Ellen Bichell -- "Some everyday foods contain toxins that could wreak bodily havoc under the wrong circumstances.
Fruits and vegetables are unquestionably essential to a healthful diet.
But there's another side to some of these plants that, thankfully, most people never see: the tiny amounts of toxins within them. The minute amounts of poison found in many seeds, leaves and roots are the result of the protracted arms race between plants and the animals that try to eat them. It's the reason why you've never shelled a cashew (the shells might make you break out in a poison ivy-style rash) or eaten green potato fries (read on for details). ..."
Photo: Rhubarb: delicious with strawberry pie, but steer clear of the leaves. Credit: Rae Ellen Bichell/NPR