Unisex

The Feline Longevity Guide by Whompsy, book cover with an orange cat illustration

Unisex

The Complete Feline Longevity Guide

$19.99

The average cat lives 13–15 years. Well-cared-for cats routinely reach 18, 19, even into their twenties — and the difference is rarely luck.

The 20-Year Cat is a complete, 11-chapter owner's guide to feline health, nutrition, and longevity from the Whompsy Wellness Library. It breaks down the five levers of a long feline life — nutrition, hydration, body weight, dental health, and early detection — and turns them into a system any owner can actually follow.

Inside the guide:

How to read a cat food label in 30 seconds — and the honest answer on wet vs. dry
Taurine and the essential nutrients cats can't make, and which cats run low
Hydration strategies that protect the kidneys — the organ most likely to fail first
Body condition scoring, safe weight loss, and dental care that actually works
Preventive vet care by life stage, from kitten to geriatric
The 15 red-flag symptoms that should never wait — the first five are same-day emergencies
The Longevity Protocol: daily, monthly, and yearly checklists to print and put on the fridge

Instant digital download (PDF). Read it on any device, tonight.

Tip: this guide is included free with every jar of Whompsy Taurine Supplement.

Excellent 4.8 | 1319 reviews

The Complete Feline Longevity Guide

Get It By

Your Cat's Path to a Longer Life

A simple, vet-informed guide to helping your cat live a longer, happier, and healthier life—one easy step at a time.

Week 1

Learn the Fundamentals

Dive into the guide and discover what truly drives feline longevity—from spotting early warning signs to the daily habits that keep your cat thriving.

Week 2

Optimize Their Nutrition

Put the guide's nutrition and feeding tips into practice. Small changes to diet and portions support a healthier weight, better digestion, and more energy.

Week 3

Build Healthy Routines

Establish the daily and weekly routines from the guide—play, enrichment, grooming, and vet checkups—so your cat stays active, calm, and resilient.

Week 4

A Longer, Healthier Life

The results add up—stronger immunity, a healthier weight, and more happy years together. The guide becomes your lasting roadmap to a thriving cat.

'Best I ever had'

Excellent 4.9/5 | 1,422+ reviews

Outstanding Quality

I've been shopping with this brand for over a year now and the quality never disappoints. Every purchase has exceeded my expectations and their customer service is exceptional.

Sarah M. Verified customer

Outstanding Quality

I've been shopping with this brand for over a year now and the quality never disappoints. Every purchase has exceeded my expectations and their customer service is exceptional.

Sarah M. Verified customer

Worth It!

Okay, so I thought about the price, but this jacket is 100% worth every penny. The way it's made is top-notch, and it's surprisingly warm without being super bulky. A total keeper.

Jessica M. Verified customer

Must-Have

Your basic tees are anything but basic. They're crazy soft, really well-made, and they wash up perfectly every time. I've bought them in every color, seriously!

Liam B. Verified customer

Must-Have

Your basic tees are anything but basic. They're crazy soft, really well-made, and they wash up perfectly every time. I've bought them in every color, seriously!

Liam B. Verified customer

Must-Have

Your basic tees are anything but basic. They're crazy soft, really well-made, and they wash up perfectly every time. I've bought them in every color, seriously!

Liam B. Verified customer

CEREMONIAL QUALITY

FAST SHIPPING

GOOD TASTE

CEREMONIAL QUALITY

FAST SHIPPING

GOOD TASTE

CEREMONIAL QUALITY

FAST SHIPPING

GOOD TASTE

CEREMONIAL QUALITY

FAST SHIPPING

GOOD TASTE

Sustained Energy +