James Beloved and Natures best from Hills are good quality foods which are low in minerals etc.

My vet said feeding Hills Medical ID food is good for both upset bottoms (Bramble) and UTI (George had one attack)

So we feed all our cats, Hills Medical ID food but bear in mind this food only works properly is that is ALL your cat eats. No Treats, No Human food, No other food.

I have to admit, I also feed mine treats of wet cat food one can spilt between all 6 cats.