nitrogen en Comfrey <p>5/3/14: This week on "<a href="" target="_blank">The Plant Detective</a>:" Compounds in Common Comfrey (<em>Symphytum officinale</em>) soothe inflammation and help cells regenerate - hence the old names for plant, "boneset" and "knitbone." But toxic alkaloids in comfrey can damage the liver, so be cautious even with external use of this herb.</p><p></p><p>Age-old remedy can be dangerous.</p> Fri, 02 May 2014 14:00:00 +0000 Beth Anne Austein 18382 at Comfrey