I buy Natural Balance Premium Small Bites and the Healthy Bone treats, and my puppy loves both! I also had the same question so I emailed Natural Balance at
info@naturalbalanceinc.com. They answered very quickly. Here was their response:
Hello,
Thank you for contacting Natural Balance. Please know that over 94% of our ingredients are from the United States, 4% from New Zealand, less than 1% from Europe, and less than 1% from Asia (this is because a specific amino acid, Taurine, is ONLY available in Asia). All of our formulas are manufactured in the United States and are tested from start to finish ensuring that there are no contaminants and that they are safe to feed. We also have a new "Buy With Confidence" Program, which you may access on our website to view the actual testing results of your pet food.
Sincerely, Kristi Choy, B.S. Animal Nutrition Natural Balance Pet Foods 800-829-4493 x122