I have two 3-month old kittens. When I got them at 8 weeks they were already on Whiskas wet and dry food so this is what I continued with for the first couple of weeks. Never had any issues with their tummies on the food but I’ve read that feeding Whiskas would be akin to feeding a child McDonalds every day so set about to change to something better. I changed dry food to Scrumbles with no issues. Tried to introduce Blink wet food but neither cat really liked it. Have now tried Untamed which the kittens love, they’re only on 1-2 tins a day between them alongside Whiskas wet food as I bought the Whiskas in bulk but they are now starting to go off the Whiskas and will always eat the Untamed over it if available. However since introducing it my male kitten is having loose stools, this has been for a bit over a week now. I’d hoped it would settle down but it doesn’t seem to have done so, he will have the odd ‘normal’ poo but still at least one loose poo a day, often more. As well as being worried that his body will be losing water and nutrients it’s also leaving him with a dirty bottom which I have to clean and it’s not very pleasant for either of us! He is also having very smelly farts, before switching to Untamed I’d never noticed either kitten fart before. Other than the stomach issues he seems completely fine in himself, playful and lively etc. He doesn’t seem in any pain or discomfort when he poos, it’s just the poo is loose.
Seeing as the cats had no stomach issues on Whiskas should I just go back to feeding this? Is it really that bad for them? Or should I give more time for his stomach to settle? Or should I go back to Whiskas for a week, see if his stomach settles and then try to introduce Untamed again? They had their second lot of vaccines last week so I also don’t know if this might have contributed to his stomach issues? His sister has been completely fine. Any advice would be appreciated, thanks.