After reading so many good reviews of Millie's, I decided to switch my lab from Wainwrights grain free to Millies countryside mix. Her poos were enormous and quite frequent on Wainwrights hence the change. However, although she happily eats the new food, she has been sick quite a few times since going on it. I did introduce it fairly quickly (over 2 days) as I had nearly run out of her old food but the Millie's website said it's normally fine to do this.
She's been on it just over a week now and was sick again this morning. I shelled out £40 on a big bag as I knew there wouldn't be a problem with her eating it (she eats anything!) but I wasn't expecting it to make her sick. She is perfectly fine otherwise so I'm confident that there is nothing else causing the sickness.
I'm not sure whether to persevere or not? Any advice?