I recently began switching my kitties from eating Purina Cat Chow (kitten chow for the little ones)to Iams. I've been adding a little Iams to the Cat chow increasing the amount over time. Today, two of my kitties, Loco( age 5 months) and Missy (8 weeks) had soft stool when they went to the litterbox. It wasn't diarrhea, just loosely formed. Usually their stool is firm and not as smelly as this soft stuff is.
They are due to have their second round of worm pills in two days. Is the food change causing this? I know in the past when my outdoor cat had worms and was due for the second treatment a similar thing happened to him. This is only happening to two out of four of my cats- the two I suspect have worms. Advice?