[Stage 2] Naro - CREA 2.3 → 1.9

Naro turned 18 this year.

He has been diagnosed with Stage 2 chronic kidney disease, and he also suffers from heart disease (hypertrophic cardiomyopathy), high blood pressure, and arthritis.

There was a time when I hesitated, wondering if it would even be meaningful to start anything new for a cat like him at this stage.

But in the end, I truly feel that starting was the right decision.

In the spring of 2024, Naro’s creatinine level was 2.3.

In fact, his creatinine had reached that level as early as two years ago.
And last spring, his numbers were still high—CREA 2.3 and BUN 36.

That’s when I knew I couldn’t put things off any longer.
I decided to take a more proactive approach to his care.

That’s when we started the Dr. Toru Protocol.

Four months later, his numbers had noticeably improved.

We had been consistently giving him the supplements since March,

and by October, his blood test showed a CREA of 1.9.

BUN was 31, and SDMA was 13.

Amazingly, those numbers have stayed stable ever since.

In the April 2025 test, CREA was still 1.9, and SDMA had dropped to 10.

The fact that his condition hasn’t worsened in over a year—
that alone has been a huge relief.

It wasn’t just the numbers.

After starting the supplements, Naro began to change in visible ways.

He used to sleep all day, but slowly, he started walking around the house again.
Even the limp in his hind legs disappeared.

For me, more than weight or energy levels,
just seeing him hold on like this—day by day—makes me incredibly grateful.

What We Used for Naro

For Naro, kidney care wasn’t the only concern.
He’s a cat with not just CKD, but also heart and joint issues—
so choosing the right combination of supplements took a lot of thought.

Here’s what we’ve ultimately chosen to support him with:

  • Dr. Toru Protocol (started March 2024)
  • Intensive Protocol (started September 2024)
  • Probiotics Protocol
  • Omega-3
  • Phosphate binder

Among them, we saw the most noticeable changes after starting the Dr. Toru Protocol.
That’s where the real turning point began—for both his numbers and his quality of life.

Naro’s Kidney Values Over Time

Date BUN CREA SDMA 
2024-04-13 36 2.3 12
2024-10-12 31 1.9 13
2025-04-05 38 1.9 10


It’s not a perfect progress—but for us, stability is more than enough.

At first, I hoped the numbers would go down.
But over time, I’ve come to realize just how precious it is when they simply stay steady.
Especially for an older cat like Naro.

※ This post does not imply medical treatment or cure.
It simply shares one cat’s real-life care experience from a guardian’s perspective.

Our mission is to stop feline kidney disease

— Greycoat Research

The protocol—now available for your cat.