It may not be about the food, I have a senior peke who needs help to have a bowel movement. The anal sphincters sometimes don’t work as well as these small breeds age.
I have a medical background so I deal with it, I realize that not everyone can.
Have your vet examine the dog and advise you.
Add water to the food dish, they will lap it up to get to the food, this may help.
Don’t free feed, 2 or 3 small meals per day, and increase exercise, even a couple of 10 minute walks around the block every day can make a big difference.
Just my opinion, but I would stop all supplements including the coconut oil, unless the vet advises you differently.
