I had a dog years ago who could not eat any canned food. Same problem you are having. Found pup, so no idea of exact breed mix but we guessed he was an Aussie/Collie mix. Anything but dry food became a real mess with all his long hair.

Glad you figured it out!

Same here. My current dog cannot tolerate canned of any brand. He also ends up with the 'runs'.

We had a St. Bernard/Collie mix (talk about fur!) who couldn't tolerate canned food. I tried to give him some as a treat, and ended up with a mess. I asked our vet about feeding a mix of canned and dry, and he said that dry alone is better for the dog. Perhaps your feeding issue isn't all that unusual after all. Just keep on loving Mollie!

My rescue Buddy was the same way. I thought I was giving him a special treat and it ran through him like water.

when these issues arise, switch the dog to boiled chicken/white rice ONLY. remove ALL dog food, canned or kibble. this will usually clear up the runs almost overnight. then gradually, over a period of 7-10 days, add whatever food you will be feeding, decreasing the chicken/rice each day.

my recent rescue great dane had this problem. poor girl had been fed a variety of foods over a period of several weeks and her tummy was so out of whack by the time i got her, she had the runs constantly. she is now pooping nice solid turds, yayyy!!! she loves the chicken/rice so much, i still give her a little with each meal.

you can also try canned pumpkin (NOT pumpkin pie filling) but you have to be careful because too much can have the opposite effect. try adding a spoonful of vanilla yogurt, too. all 3 of my dogs LOVE it and get it once a day.

I simply ceased adding the canned---less than 24 hours she is back to normal. I did start twice a day feeding---to ease her up to optimum weight. That is working well.

Nothing unusual about a dog not handling certain foods poorly when they are not used to it. Even much better foods can change bowels if switched over too quickly.