[Ellie May]

Beet pulp is the closest thing I can find that Euk has in that for the stomach:

Beet Pulp is the vegetable matter that remains after sugar is extracted from sliced grey sugar beets. It is an excellent source of soluble fiber and helps to maintain a healthy digestive tract and promote normal stools.

But RC has it too, I believe.

I would try the homemade diet posted above just to see.

Euk isn't the most horrible food ever but they are Iams which does all the animal testing garbage.