Comfrey is an herb traditionally used for bone healing. It is also sold as a dietary supplement to promote respiratory health. Comfrey has been banned in Canada and Germany because of its link to liver damage or failure, but remains legal in the...
Brown marine algae (Class Phaeophyceae) produce chemicals (phlorotannins) that protect them from marine herbivores. Defense-related factors create an intricate relationship between food choices of herbivores and metabolically costly production of...
