The maker of America's #1 organic dog food, Castor & Pollux is proud to introduce PRISTINE, the only complete line of dog food made with responsibly sourced ingredients. All Pristine recipes are made with responsibly raised meat or poultry or wild-caught fish as the first ingredient. Fruits and vegetables are grown responsibly without synthetic fertilizers and chemical pesticides. All recipes are grain free with no corn, soy, wheat or gluten ingredients and are made with without artificial preservatives, flavors or colors.