Wellness Dog Food Toxic to Dogs! Toxic Ingredient! Dog Food Advisor › Forums › Feedback and Suggestions › Wellness Dog Food Toxic to Dogs! Toxic Ingredient! Viewing 1 post (of 1 total) Author Posts May 20, 2015 at 11:32 am #72818 Report Abuse CircaRigelMember Recently, Wellness has been adding an ingredient to ALL of their foods, including Holistic Select, Eagle pack, and others. This ingredient is Tea Tree Extract. Here are the scientific studies that have found it to cause liver toxicity in dogs: http://www.ncbi.nlm.nih.gov/pubmed/?term=dogs+green+tea+extract A warning MUST go out to prevent more dogs from getting ill or worse. Please help!! Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.