Feline Kidney Care, Made Clear
Launched in 2024, the Greycoat Kidney Program has provided
over 2,000 one-on-one consultations with cat guardians.
From Stage 1 to Stage 3, we've helped guardians care for their CKD cats
with a clear, structured plan.
“Am I really doing the right thing?”
If that question feels familiar, now may be the time to begin.

Powered by AIM-Based Science
AIM is a natural protein that plays a key role in clearing waste from the body. When it doesn’t function properly, the kidneys may begin to struggle.
Greycoat’s Dr. Toru Protocol is built on this insight— developed from the research of Dr. Toru Miyazaki, who discovered AIM.
Today, that same science can support your cat’s daily care.
Before & After on the Greycoat Program
Stage 1 CKD Program
At least 66% of kidney function remains.
Stage 1 CKD is not normal. Kidney damage has already begun.
The earlier you start care, the more kidney cells you can preserve.
- AIM-based supplements
- Senior diet
- Daily hydration support
Stage 2 CKD Program
Approximately 33–66% of kidney function remains.
Now is the turning point for your cat’s renal care.
You need to begin renal management to prevent further decline.
- Stage 2 Tailored Supplements
- Renal diet
- Active hydration support
Stage 3 CKD Program
Approximately 15–33% of kidney function remains.
Do not consider euthanasia. There is still hope.
But you must respond quickly and precisely.
- Stage 3 Tailored Supplements
- Renal diet and assisted feeding
- Subcutaneous fluids
- Electrolyte management
- Complication management
- Emergency checks
Led by Pioneers in Kidney Science
The Greycoat Program is grounded in AIM-based science—led by global experts who shaped this field:
Need help creating a plan?
Start with a free 1:1 consultation—we’ll guide you every step of the way.
Tackling Complex CKD Cases with Greycoat
Greycoat supports both guardians and veterinarians in complex situations.
From lab interpretation to supplement planning and hydration scheduling, we help you find the next best step—together.
For Veterinarians – When Clinical Decisions Get Complex
We share case-tested strategies with clinical teams:
- Medication combinations
- Supplement timing
- Sub-Q hydration routines
- Nutritional support options
For Guardians – When Routines Stop Working
When lab values worsen or complications appear, your cat may need a different plan.
Greycoat offers personalized 1:1 consultations.
We help you reset, adapt, and move forward with confidence.
Complete Your Kidney Care Routine
Our mission is to stop feline kidney disease
— Greycoat Research