

Start Your Journey to Improved Kidney Health Today.
Clinically Studied to help improve or maintain kidney function.
Three Proprietary Probiotic Strains to help reduce creatinine, uric acid, and urea levels in the blood.
90-day Money-Back Guarantee.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Meet Dr. Richard Johnson
He is a professor of medicine at the University of Colorado and is a clinician, educator, and researcher. He is board certified in internal medicine, infectious diseases, and kidney disease and is the founding editor of Comprehensive Clinical Nephrology, one of the main textbooks on kidney disease. For more than 20 years, he has led research on the cause of…
About Dr. Johnson
Dr. Richard Johnson is a professor of medicine at the University of Colorado and is a clinician, educator, and researcher. He is board certified in internal medicine, infectious diseases, and kidney disease and is the founding editor of Comprehensive Clinical Nephrology, one of the main textbooks on kidney disease. For more than 20 years, he has led research on the cause of obesity and diabetes, with special interest in the role of sugar (especially fructose) and uric acid. His research has been highly cited, published in top medical journals, and supported by grants from the National Institutes of Health. He is the author of The Sugar Fix, The Fat Switch and most recently Nature Wants Us to Be Fat. Dr. Johnson lives in Colorado with his wife, kids, and two rambunctious puppies.
Education and Training
Raised in the Midwest, Johnson graduated with honors from the University of Wisconsin in Anthropology in 1975 and from medical school at the University of Minnesota in 1979. He underwent internship, internal medicine residency and fellowships in both kidney diseases (nephrology) and infectious disease at the University of Washington in Seattle where he stayed on as faculty. He subsequently was Chief of the Kidney Division at Baylor College of Medicine in Houston (200-2003), the University of Florida in Gainesville (2003-2008) and the University of Colorado in Aurora (2008-2017) before stepping down. He remains active with clinical practice, teaching and research. He also is married, has two children and two excitable puppies.
Awards and Honors
- University of Wisconsin B.S. with honors (Phi Beta Kappa, Junior year)
- University of Minnesota Medical School (Alpha Omega Alpha, Junior year)
- Young Investigator Award, American Society of Nephrology and American Heart Association 1994
- American Society of Clinical Investigation 1995
- Web of Science, Thomas Reuters ISIhighlycited.com (1992-present, >83,000 citations)
- National Institutes of Health Study Section
- University of Colorado Medical Campus 2011 Inventor of the Year
- Distinguished Visitor of the USS Ronald Reagan 2013
- National Geographic (featured scientist on sugar, cover story, Sugar Love, by Richard Cohen)
- Scientific American, The Fat Gene, coauthor with Dr Peter Andrews, October 2015
- David Hume Award, National Kidney Foundation, April 2017
- Nobel Symposium on Bioinspired Medicine, 2019
- 10 Patents Issued
Renadyl: The Best Supplement for Kidney Health
Renadyl is a proprietary combination of patented probiotics and prebiotics that can help put you in control of your kidney health and your life story.
Consumes Uremic and Nitrogenous Compounds
Once in the gut, the probiotics in Renadyl consume toxins such as creatinine, urea, and uric acid, reducing the burden on your kidneys.

Available Exclusively in Renadyl
Every capsule of Renadyl contains 45 billion CFUs (colony-forming units) of three patented probiotics.
- Streptococcus thermophilus (KB19)
- Lactobacillus acidophilus (KB27)
- Bifidobacterium longum (KB31)
These probiotics were carefully studied and specifically selected because of their affinity for creatinine, urea, and uric acid.

All-Natural Probiotics
The ingredients in Renadyl are all natural and not genetically modified.
- Non-GMO
- Allergen-Free
- Gluten-Free
- Sugar-Free
- Non-Prescription

25 Years of Research
Renadyl was developed by kidney health researchers and leading nephrologists working together to develop ways to help improve kidney function.

Potency Retained Through Digestive Tract
Unlike many other probiotics, Renadyl is housed in acid-resistant capsules to protect the probiotics as they travel through the acid in your stomach, ensuring viability of the probiotics when they reach your intestines.

The Natural Probiotic Trusted byKidney Health Specialists Worldwide
Renadyl is the #1 nephrologist-recommended, patented probiotic health supplement for reducing creatinine, urea, and uric acid.
It is proven to help maintain healthy kidney function and also help support quality of life for those with CKD.
Clinically Studied. Multiple third-party placebo-controlled studies have indicated Renadyl to be a beneficial addition to a healthy kidney regimen.
No Significant Side Effects. Trials found no significant difference in side effects between Renadyl and placebo.†

- Like with any probiotic, Renadyl should not be taken by those who are immunocompromised. Please consult your doctor before taking Renadyl, especially if you have a compromised immune system.
“Renadyl has been a real game changer for me, not only for improving my kidney function, but also resolving my issues with reflux. I swear by the stuff!” – Leza
“My doctor told me my only hope was dialysis since kidneys hardly ever get better, especially at my age (78). However, my last blood test showed remarkable improvement. As long as I stay stable, thanks in large part to Renadyl, I may never need dialysis.” – John B.
Consume 1-2 Capsules Per Day to Improve Kidney Health
When consumed consistently, Renadyl can reduce the stress on your kidneys and help you live “happily ever after.”

Consume 1 Capsule
2 times per day with a meal(s) or as recommended by your physician.
Serving size: 1 capsule.

6+ Months
to receive full benefits of Renadyl.

Keep Taking Renadyl
to maintain or continue improving healthy kidney function.

Take Control of Your Kidney Health, Starting Now.
Chronic Kidney Disease does not need to define you. Live your life story and regain control of your kidney health naturally with Renadyl.