All I can say personally is that I have heard there is research linking Green Tea Extract to toxicity in dogs. I haven’t seen the research myself. Many would say the dose makes the poison, as is true for dogs and chocolate. The Green Tea Extract in the Wellness foods tends to often be the last ingredient meaning it makes up the least amount of the food. They have their reasoning for its inclusion on their website if you care to read their side of it. I’ve forgotten what it says off the top of my head.
From what I’ve gathered others are also concerned about it containing caffeine. Again, I don’t know that there has been studies done long term with dog foods that contain trace amounts of it showing that it has toxic effects. Perhaps someone else knows and can link some of the research they have come across.
