If you only read this…
- Diet is the biggest lever over your cat's lifespan. Read this part first.
- Cats are obligate carnivores — feed meat, not corn. No kibble as a primary.
- Kibble's three failures: too little water, too many carbs, wrong protein.
- Kitten food the entire first year (longer for Birmans).
- Cats barely drink — wet food + multiple water sources + a fountain.
If you only read one part of this handbook, read this one. Diet is the single biggest lever you have over your cat's lifespan, coat, urinary health, kidney function, and mood — more than vaccines, more than vet visits, more than genetics.
The obligate carnivore truth
A cat is not a small dog. A cat is an obligate carnivore — biologically required to get the bulk of their nutrients from animal tissue. There is no version where plants do the same job. They can't make their own taurine, can't convert plant vitamin A, can't synthesize arginine, and have almost no enzyme for digesting carbs. Every "premium" kibble is a workaround for these facts, not a fit with them.
Why kibble fails them
Dr. Lisa Pierson, the feline-nutrition vet behind catinfo.org, names three core problems, and we agree with all of them:
- Not enough water. Kibble is 6–10% water; a mouse is 70–80%. Cats on dry food make urine twice as concentrated and live in a constant water deficit. Chronic kidney disease kills about 1 in 3 senior cats. (Cornell Feline Health Center)
- Too many carbs. Starch holds the pellet together. Cats have no real use for 30–40% carbs — the excess drives obesity, diabetes, and gut inflammation.
- Wrong kind of protein. "Crude protein 32%" means little if half is corn gluten or pea protein. Cats are built to use animal protein.
High-heat processing also destroys up to 90% of taurine (sprayed back on after), and "dental health" claims are mostly marketing. Where kibble fits: an occasional supplement, never a meal. Beans is nursing and skinny, so we leave a small bowl out overnight for calorie access — that's our only use case.
What to feed instead
The universal rule: whatever you feed must be complete and balanced for the right life stage. And feed kitten food for the entire first year — longer for slow-maturing breeds. Birmans aren't fully mature until 2–3 years.
- Raw — closest to what a cat evolved to eat. Viva Raw is our top pick; for DIY, start with Paws of Prey.
- Freeze-dried raw — Stella & Chewy's dinner morsels, 98% meat, organs, and bone.
- Wet food — named meat first, no carrageenan or wheat gluten, taurine listed. Sheba kitten is what we use.
A simple add-on: the egg yolk trick
Drop a raw egg yolk into food a couple times a week. It's one of the most nutrient-dense foods on the planet — nature's multivitamin — covering choline, B vitamins, healthy fats, and trace minerals. Yolk only, no whites (raw whites block biotin absorption). Use pastured eggs if you can.
Water: the silent crisis
Cats are bad at drinking — their thirst response only kicks in once they're already mildly dehydrated. By the time they're at the bowl, they're behind. The setup that works:
- Multiple sources — 2–3 around the house, away from food.
- Fountains beat bowls — running water is more enticing and stays fresher. We use a stainless steel fountain.
- Stainless or ceramic only, refreshed daily, filtered if you can.
Supplements that earn their spot
Most cats on a varied, high-quality diet don't need a stack. Three worth knowing: taurine (verify your food has it — deficiency causes heart failure and blindness), kelp (iodine, trace minerals, mild dental benefit), and omega-3s from fish or krill oil (coat, skin, joints). Skip the rest. See the PDF for dosing and brands.
This page is the scannable version. The full chapter — every list, every source, every edge case — lives in the handbook PDF.
Read the full chapter (PDF)