Purizon Original Beef with Chicken - Grain-Free

We wanted to treat our two to something nice and ordered the Beef & Chicken combo. They quite like eating it, but it gives them runny and really smelly stools. Now we only mix a tiny bit of it into their favourite food (wild boar/chicken). That works. But as soon as the amount gets too high, we get the olfactory bill served straight away in the litter tray ;-)