Because lab results continually show kidney difficulties (overall functioning is not a problem, but BUN/creatinine Ratio is) my naturopathic doctor keeps me on Renafood daily for a total of 4 tablets, taking the 2 tablets rotated at breakfast, lunch and dinner. In addition, he has suggested eating about a TBSP or 2 of cooked beets. Lab results for March 14, 2025, show BUN/creatinine ratio went from 81 down to 54. Still above the range (6 to 22) but a vast improvement over many months of difficulty.