Nature's Way Marshmallow Root is TRU-ID and non-GMO certified. Marshmallow (Althea officinalis) root has been traditionally used to help support respiratory health. Nature's Way marshmallow is carefully tested and produced to superior quality standards. Health through the power of nature. That's what it means to "Trust the Leaf." Contains No: gluten, sugar, salt, yeast, wheat, corn, soy, dairy products, artificial colors, flavors or preservatives.