[theBCnut]

Some protein sources are high phosphorus, but there are proteins that are low phosphorus, and it is worse for the kidneys if you restrict protein too much.

The canned food you found should have been 8%, not .8%. That’s far too low. I don’t think anyone would make one that low.

You may think you are loving your boxer, but that isn’t anything like a healthy diet. You either need to get resources that will teach you how to make a healthy balanced meal or put her on dog food.