Pet Longevity Review

Gut Health

The gut microbiome is the foundation of your pet's immune system, mood, and metabolism. Evidence-backed reviews of probiotics, postbiotics, and microbiome testing — with transparent sponsor disclosure on every article.

Gut Health

Animal Biome vs. FortiFlora: Updated Title Test

A veterinary nutritionist ran an 8-week trial comparing two leading probiotics. The results challenge conventional wisdom about single-strain supplements.

⚡ Sponsored Katie Dahlhausen · 9 min
Read Article →
Gut Health

The New Science of Postbiotics for Dogs: What They Are, Why They're Different, and 4 Brands Worth Trying

Postbiotics are the breakout gut health category for 2026 — and they solve problems that live probiotics can't. Here's the science.

⚡ Sponsored undefined · 7 min
Read Article →
Gut Health

My Dog's Stomach Was a Mess After Switching Foods — Here's the 30-Day Gut Reset Protocol That Actually Worked

What most pet food labels get wrong about food transitions — and the microbiome-based protocol that actually resolves the disruption.

⚡ Sponsored Kira Sutton · 8 min
Read Article →
Gut Health

Is Your Cat's Gut Fundamentally Different From Your Dog's? The Species-Specific Probiotic Guide

The feline microbiome is not a smaller version of the canine one. A board-certified internist explains what probiotics actually work for cats.

⚡ Sponsored Dr. Leah Morrison, DVM · 7 min
Read Article →
Gut Health

Synbiotics vs. Probiotics vs. Prebiotics: The Complete Pet Owner's Guide (With Lab-Tested Picks)

The biotic terminology is genuinely confusing, and pet supplement labels don't help. Here's the clear scientific breakdown and honest product rankings.

⚡ Sponsored Marcus Webb, BSc · 10 min
Read Article →
Gut Health

My Dog Has Diarrhea, Now What? Veterinarian Tips

When your dog has diarrhea, you need solutions quickly. However, figuring out what the underlying problem is difficult, and it may take some time to arrive at a proper diagnosis. We spoke with Dr. Mic

⚡ Sponsored Katie Dahlhausen, PhD · undefined
Read Article →
Gut Health

Inflammatory Bowel Disease in Cats: Symptoms & Treatment

Inflammatory bowel disease (IBD) is common in cats, but a diagnosis of IBD can be confusing. Learn how to restore balance to your cat's gut microbiome.

⚡ Sponsored undefined · 4 min
Read Article →