Kidney values ​​are back on track

This food had to eat my dog ​​because of poor kidney values ​​for a time (1/2 year). The kidney values ​​have gradually improved to normal values. We had to keep in time strict diet, there were no treats or similar. The lining acts greasy because it is sprayed with fish oil, but the dogs need these essential fatty acids. So do not be irritated about it. However, I would buy the food only at the express recommendation of the veterinarian!