Willie is a 10 1/2 year old female airedale and the light of my life.
Since a bad infection after spaying at age 2, she has been on a diet of
homemade chicken and rice mixed with Science Diet dog food.  She has
had intermittant bouts of diarrhea for the last few months, lasting 1-2
days with spans of a few weeks between bouts.  The vet checked her out
and sees no problem.  Willie is an inside dog who goes out morning,
noon, and evening.  The heat here in SC discourages her from staying
out long during the day.  The evidence shows she eats lake grass that
grows out of the lake in our yard.  I don't know if this is the cause
of her loose bowels or if it indicates she is self-treating her
problem.  Would any of you have advice for me on diet?  Thank you.