Greycoat Research Expert Guidance for CKD Cats
With over 1,000 consultation cases worldwide, Greycoat Research provides expert-backed guidance for CKD cats, helping them maintain kidney health and manage the progression of CKD through data-driven care.

Dr. Toru Miyazaki was the first to uncover the mechanism behind cat CKD.
Dr. Toru Miyazaki, the world's leading authority on AIM research, provides Greycoat Research with expert guidance in developing AIM-based supplementation to support kidney function. His research has contributed to innovative treatments that help manage CKD in cats.
Leo, a cat diagnosed with both CKD and IBD, faced a particularly complex case. Due to dietary restrictions, he could not follow a standard renal diet. However, with AIM supplementation and targeted kidney support, his condition has stabilized, making his management significantly more effective.
Meet Leo

- Age: 12 years
- Sex: Male
- Weight: Previously 4.3 kg, currently 4.1 kg
- Condition: CKD and IBD (Inflammatory Bowel Disease)
- Symptoms Before Treatment: Vomiting, difficulty maintaining weight, dietary restrictions due to IBD
- Previous Diet & Treatments: Allergy and gastro-specific diets, kidney medications, blood pressure medication
Leo's Health Improvements
Leo began AIM supplementation on December 3, 2024. By January 2025, his kidney health showed signs of stabilization.
Health Metric |
Before |
After |
Change |
Creatinine (CRE) |
2.8 |
2.3 |
Decreased (improved kidney waste filtration) |
BUN Levels |
28.4 |
28.9 |
Slight Increase (monitor hydration) |
Phosphorus Levels |
3.8 |
4.2 |
Slight Increase (phosphorus management needed) |
Weight |
4.3 kg |
4.1 kg |
Decreased (focus on weight maintenance) |

How Did Leo Improve?
Energy and Activity
- Energy levels remain stable, with no significant declines.
- Shows good responsiveness to treatment despite dietary limitations.
Weight and Appetite
- Struggles with weight gain due to vomiting issues.
- Loves food but vomits when overeating, requiring careful portion adjustments.
Appearances & Other Changes
- No reported issues.
Supplement Adjustments
- Started Dr. Toru Protocol in December 2024.
- Currently taking Intensive Protocol, an antioxidant supplement, omega-3, Azodyl, Renamezin, and blood pressure medication as part of his CKD management.
- Not taking IBD supplements or nutritional supplements for urinary tract disease despite initial consultation recommendations.
Leo’s creatinine levels decreased from 2.8 to 2.3, suggesting improved kidney waste filtration. This drop is particularly noteworthy, considering he has only been receiving AIM supplementation and Greycoat Research’s care for 1 month. However, managing his weight remains a challenge due to IBD-related vomiting, requiring careful monitoring to ensure stability.
While BUN and phosphorus levels have risen slightly, this is not a cause for concern at this stage, as only 1 month of supplementation is not enough to assess full effects. Continued observation over the next 3 months will provide a clearer picture of his long-term response to care.
Testimonial from Leo's Owner
"Managing both IBD and CKD has been extremely difficult, especially with diet restrictions. Leo had a history of vomiting and couldn’t eat renal diets, making it hard to control his kidney values. After starting AIM supplementation, his management became much easier. Although we still struggle with weight gain, I’m relieved that his kidney values have stabilized."
Help Your Cat Live Healthier with CKD Support
CKD is a progressive and irreversible disease that gradually impairs kidney function. Because many cats show no symptoms until significant damage has occurred, early detection and management is key to delaying its progression and preserving quality of life.
Greycoat Research has provided consultations for over 1,000 cats, with 97% of stage 2 and 3 cats showing improved kidney health after following our tailored management plans. If your cat has been diagnosed with CKD or has high creatinine levels, taking action now can lead to lasting improvements.
- Try AIM-based supplements, including Dr. Toru Protocol, along with additional kidney support.
- Monitor kidney health regularly and adjust treatment plans as needed.
- Schedule a free consultation with Greycoat Research for expert guidance.