Thanks for the info!
I take 1/2 tablespoon of psyllium powder (generic Miralax at much lower price) daily.
My 15 lb. dog was often straining and constipated, and I was worried about him. So I started stirring 1/4 teaspoon into his food daily. Now he is having normal bowel movements again.
I’m so surprised you posted this. This stuff really works because it adds additional fiber to their diets. More people should know about this!