Hi Erin N,
I would start by giving the good probiotic for at least for several days and then add the fiber at just maybe 1/16 to 1/8 tsp. Increase the amount over a few weeks. You can possibly use the human dosage given on the product you purchase as a guide but I would err on the side of less is more till you can judge how your pup is doing. Fiber 35 is no longer made but NOW and Garden of Life both have an acacia fiber supplement.
I wish I could give you exact amounts but I simply haven’t seen any reference. It is now easier to find data overall — they now refer to nitrogen trapping as enteric dialysis but I still have yet to see recommended dosage amounts.
This website has some info about how it works about halfway down the page. They are pushing low protein (which we know is not necessary) but it is the best source of info I’ve found on how nitrogen trapping actually works. http://todaysveterinarypractice.navc.com/nutritional-management-of-renal-disease-an-evidence-based-approach/
I’m happy you are starting the Standard Process Canine Renal Support!!!!
Wishes for your baby to have as much success with these products as my Audrey did!!!!!!
