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The Kitty Up Publication · Summer Edition · 2026
Feline Era
Science, care, and the everyday experience of living with cats.
Cover storyDigestive Health
Cat Gut Microbiome: What It Is and Why It Matters
The feline gut microbiome is an ecosystem, not a setting you can reset. Here is what it actually does, what changes it, and how probiotics, prebiotics and postbiotics differ.
Read the storyWorth Reading Now
diarrhea
Cat Diarrhea and Probiotics: What the Evidence Actually Shows
13 min readCat Behavior
Signs of a Healthy Cat
10 min readCat Care
Your Realistic Daily Hydration Checklist
8 min readHealth & Wellness
UTIs, Urinary Crystals and Inflammation: What's the Difference?
10 min readCat Care
Hydration and Urinary Health: What Cat Parents Should Know
12 min readCat Care
Wet Food vs. Dry Food: What Actually Affects a Cat's Hydration
8 min readCat Hydration Series
Why Food Matters More to Your Cat’s Hydration Than You May Think
8 min readRead Now
The Feline Gut Health Series
The Feline Gut Health Series breaks down what cat parents should know about digestion, probiotics, the microbiome, and everyday gut health. We separate solid evidence from emerging research and explain it in plain English. No hype, just practical feline-focused guidance.
Explore by topic
Ways into feline care.
Health & Wellness
Changes, habits, and health signals that matter throughout a cat's life.
Nutrition
Clear, practical guidance about what cats eat, drink, and need to thrive.
Life With Cats
The everyday questions, routines, and relationships that shape life together.
The Science of Cats
Research and feline biology explained in calm, accessible language.
Feline Stories
Real cats, real caregivers, and the experiences that deepen how we understand them.
Latest from Feline Era
Digestive Health
Cat Gut Microbiome: What It Is and Why It Matters
diarrhea
Cat Diarrhea and Probiotics: What the Evidence Actually Shows
Cat Behavior
Signs of a Healthy Cat
Cat Care
Your Realistic Daily Hydration Checklist
Health & Wellness
UTIs, Urinary Crystals and Inflammation: What's the Difference?
Cat Care
Hydration and Urinary Health: What Cat Parents Should Know
Cat Care
Wet Food vs. Dry Food: What Actually Affects a Cat's Hydration
Cat Hydration Series
Why Food Matters More to Your Cat’s Hydration Than You May Think
Gut + Immune Support
Probiotics and Cat Urinary Wellness: What Parents Must Know
From the Feline Era Desk
Observations from fostering, caring, and paying close attention.
Years of fostering and caring for cats have taught me that the smallest changes often say the most. This is where I share what I have learned by watching closely, asking questions, and putting cats first.
Stacey Rhee - Founder, Kitty Up