You can
purchase probiotic powders to add to their food or drinks.
Not exact matches
Kefir can be
purchased in bottles at the store, however commercial kefir is produced using
powdered kefir starter rather than the actual «grains,» and therefore doesn't possess nearly the
probiotic diversity of traditional kefir.
You can
purchase probiotic pills or
powders over the counter, too, or from your veterinarian.
I have started to give him NaturVet Digestive Enzymes and
Probiotics Powder (but will keep Dr. Goodpet in my mind for the next
purchase), I don't see anything but I have contacted them just to make sure.