Ingredients to avoid when we choice dog food. You may wonder what dog food is the best. The best food is what your dog like to eat and what makes your dog healthy. But we can't know what is the best because we are not a professional. So we need to read the ingredients in dog food we will buy at least. There are some ingredients to avoid. 1. CMIT (Chloromethylisothiazolinone) BHA BHT ethoxyquin Propylene Glycol That is a cancer-causing agent and...