Kidney-Focused Care
Designed for cats without major health concerns.
For cats who need kidney-focused care.
Who is this set for?
- For cats receiving structured kidney care from Stage 1 to Stage 3.
- For cats showing subtle changes in appetite or energy levels.
- For cats without inflammation-related or cancer-related conditions.
If your cat has inflammation or cancer
A different care strategy is required.
Focusing only on kidney support may worsen inflammation or cancer in some cases.
This may negatively affect overall kidney health.
In these situations, a different condition-specific care approach is needed.
The core kidney-focused approach
✔ AIM-based support
Supports natural waste clearance to help reduce kidney burden.
✔ Kidney cell environment support
Supports kidney cell health and a stable cellular environment.
✔ Gut–kidney axis support
Supports gut balance to help reduce toxin-related burden on the kidneys.
Recommended Kidney-Focused Sets
✔ Kidney Core Care Set
A focused care combination designed to support ongoing kidney health.
A more comprehensive combination than Dr. Toru alone.
Dr. Toru · Intensive · Probiotics
✔ Kidney + Appetite Care Set
For cats with kidney concerns and reduced appetite.
Designed for both appetite and weight support.
Dr. Toru · Appetite · Probiotics
Key products in the kidney-focused sets
✔ Greycoat Dr. Toru
An amino acid formula based on AIM research.
✔ Intensive Protocol
A multi-ingredient formula focused on AMPK modulation and antioxidant balance.
✔ Greycoat Appetite
Supports cellular health and helps support appetite and weight maintenance.
✔ Probiotics Protocol
A probiotic formula specialized for kidney care.
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Appetite Support
Greycoat Appetite
Regular price From US$46.60Regular priceUnit price per
Stories From Cat Guardians
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Soommu’s Stage 4 CKD Care - Finding a Stable Daily Routine
Soommu, a 9-year-old cat living with Stage 4 CKD, severe anorexia, weight loss, and a decline after stem cell treatment, began the Greycoat Program during a time of great uncertainty....
Soommu’s Stage 4 CKD Care - Finding a Stable Daily Routine
Soommu, a 9-year-old cat living with Stage 4 CKD, severe anorexia, weight loss, and a decline after stem cell treatment, began the Greycoat Program during a time of great uncertainty....
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Goro’s Stage 3 CKD Care – Toward a More Stable Kidney State
Over 134 days, Goro’s guardian followed a consistent at-home care routine and shared frequent updates with Greycoat Research, focusing on daily stability and comfort.
Goro’s Stage 3 CKD Care – Toward a More Stable Kidney State
Over 134 days, Goro’s guardian followed a consistent at-home care routine and shared frequent updates with Greycoat Research, focusing on daily stability and comfort.
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Hawaii’s PKD Care – A New AIM-Based Approach to Stability
Hawaii, a 4-year-old cat with PKD, followed the Greycoat Program from July 16 to Oct 15, 2025; at the Nov 24 checkup, CREA improved from 1.9 to 1.3, weight increased...
Hawaii’s PKD Care – A New AIM-Based Approach to Stability
Hawaii, a 4-year-old cat with PKD, followed the Greycoat Program from July 16 to Oct 15, 2025; at the Nov 24 checkup, CREA improved from 1.9 to 1.3, weight increased...
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Bianca’s Stage 3 CKD Care - Finding Steady Comfort Through Daily Support
Bianca, a gentle Persian living with Stage 3 CKD, has maintained long periods of stability thanks to consistent monitoring and a calm, predictable daily routine.Through gradual support with kidney care...
Bianca’s Stage 3 CKD Care - Finding Steady Comfort Through Daily Support
Bianca, a gentle Persian living with Stage 3 CKD, has maintained long periods of stability thanks to consistent monitoring and a calm, predictable daily routine.Through gradual support with kidney care...
Our mission is to advance feline kidney health
— Greycoat Research