21 Essential Vitamins and Minerals. Including Calcium, Phosphorous and Taurine. Country of Origin by Ingredient Tricalcium Phosphate – USA Natural Chicken Liver – USA or Roasted Peas for Veggie flavor -USA Chia Seeds - Argentina, Paraguay, Bolivia, Ecuador, Mexico Potassium Chloride -USA, Canada Kelp Meal – Canada Calcium Carbonate -USA Magnesium Sulfate – Mexico Sodium Chloride – USA Choline Chloride – USA Vitamin E Supplement – USA, China, Switzerland Zinc Sulfate – USA, Mexico Ferrous Sulfate – USA Copper Sulfate – Mexico Sodium Selenite – USA Thiamine Mononitrate -Germany Manganese Sulfate – Mexico Niacin Supplement – India D-Calcium Pantothenate – Germany, Scotland, China Riboflavin – Korea, Germany, China Vitamin A Supplement – China Vitamin D3 Supplement – Switzerland Pyridoxine Hydrochloride – Germany Vitamin B12 Supplement – France Calcium Iodate – USA, Canada Folic Acid – France, China Proprietary formulations created exclusively for Azestfor, Inc. Azestfor, Inc is based in Los Angeles California, USA. Manufacturer is based in Illinois, USA. Co-packer is based in Southern California