Whole-Cat
Whole-Cat
Whole-Cat
Whole-Cat
Whole-Cat
Whole-Cat
Whole-Cat
Whole-Cat

4.8/5 from 7853 verified reviews

catlyst whole-cat

For the senior cat who still eats, but keeps getting thinner

Older cats lose muscle first along the spine and hips. Whole-Cat gives her aging body the three nutrients its energy engine runs on, in one tasteless daily scoop.

Supports lean muscle with L-carnitine, which carries fuel into muscle cells*

Supports everyday energy with CoQ10, which helps cells turn food into energy*

Supports a strong heart with never-cooked taurine*

No mealtime battles. Tasteless, odorless, stirs into wet or dry food
60 daysmoney-back guarantee
1 scoopa day, 5 seconds
0 fusstasteless & odorless

Warning: Low Stock Notice

This product sold out 12 times last year. We encourage you to take advantage of the limited sale and buy now.

PS: Catlyst is ONLY available here, don't buy fakes on Amazon/eBay

Why Taurine Matters

The Missing Nutrient Behind So Many “Healthy” Cat Diets

 

Cats can’t make taurine on their own — it’s an essential amino acid their heart, eyes, and digestion depend on daily. 

 

But here’s the problem: modern pet food processing destroys up to 70% of the taurine that should be there. 

 

Even expensive “premium” or “complete” diets can quietly fall short, leaving your cat’s most vital systems under strain.

 

That’s why Catlysy+ exists — to fill the hidden gap before it becomes a heartbreak.

 

🧬 One Simple Scoop a Day Helps:

 

❤️ Support a Healthy Heart

Strengthens cardiac muscle and circulation — helping prevent the silent decline linked to taurine loss.
 

👁 Protect Clear Vision

Keeps retinal cells nourished and responsive, preserving long-term eyesight and alertness.
 

💨 Boost Daily Energy & Vitality

Supports smooth digestion and oxygen use so your cat stays playful, active, and bright-eyed.
 

🥣 Complete Their Nutrition

Replaces the taurine lost during cooking, storage, and ingredient shortcuts — ensuring every meal truly supports life.
 

🧡 Why Cat Parents Trust Catlyst
 

  • 99.9% pharmaceutical-grade taurine — purity verified by third-party lab testing
  • Tasteless and water-soluble — mixes easily with any wet or dry food
  • Safe at any dose — gentle, non-toxic, and naturally excreted when in excess
  • Each bottle includes a precision micro-scoop, so you’ll always know your cat’s getting exactly what they need
     

Because when it comes to your cat’s heart, “complete” isn’t complete — until you add Catlyst.

Direction For Use

mix the recommended amount into your cat’s wet or dry food once per day.

60-Day Money Back Guarantee

We’re so confident your cat will be happier and more energetic, all of our products are backed by a 60 day money back guarantee.

If you’re not 100% satisfied with our product, simply contact our team and we’ll refund your entire order.

 

Or if something isn't right, contact us and we'll deal with it for no additional charge.

Does any of this sound like your cat?

Most owners notice it by accident, usually with their hands before their eyes.

  • When you pet her, you can count the bumps on her spine
  • She feels lighter when you pick her up
  • Her hips or shoulder blades feel pointy
  • She skips jumps she used to make without thinking
  • She sleeps more and plays less
  • The vet said her bloodwork is fine and "she's just getting old"

An honest note first. Weight loss in an older cat can signal thyroid disease, kidney disease, diabetes, dental pain, gut disease or cancer. See your vet first if she's losing weight fast, eating more but still getting thinner, drinking or peeing more, vomiting, or refusing food.

If your vet has ruled those out, Whole-Cat is built for the daily side of the picture.

She isn't losing fat. She's losing muscle.

Aging cats lose muscle while still clearing their bowl. Here's why the same meal stops doing the same job.

1/3

of a healthy cat's lean body mass can be lost between ages 10 and 15.

AAHA Senior Care Guidelines, 2023

1 in 3

cats over 12 digest fat less efficiently. And fat is a cat's favorite fuel.

AAHA 2023; Royal Canin Academy

25%

more food is what some senior cats need just to hold their weight.

Little, DVAVM, 2013

So less fuel gets out of each meal. And inside her muscle cells, the engine that turns that fuel into energy can slow down with age. When the body runs short, it does what every body does.

It borrows from muscle. Quietly. Along the spine first.

Three nutrients. One aging engine.

Plain taurine powders cover one job. Whole-Cat covers the whole chain, from fuel delivery to the heartbeat that moves it.

L-carnitine

The Transporter: gets fuel inside

Fat from her food can't enter the cell's power plants on its own. L-carnitine carries it in, so her body can use its food for energy instead of drawing on muscle.*

175 mg per scoop

CoQ10

The Spark: turns fuel into energy

Once the fuel is inside, CoQ10 helps convert it into usable energy. The body makes its own, but studies in people and lab animals show it makes less with age.*

20 mg per scoop

Taurine

The Shield: keeps the pump strong

Her heart is the hardest-working muscle she has, and it needs taurine. Cats can't make enough, and heat-processed food loses a large share. Ours is never cooked.*

375 mg per scoop

The 20-second back check

Lay your palm flat on her shoulders and slowly run it to the base of her tail. What do you feel?

A well-muscled back

This is the stage to protect. Muscle is far easier to keep than to win back, which makes now the easiest time to start daily support.

Early muscle loss

The most common thing vets feel on cats over 10, and the stage where daily support can make the biggest difference, because there's still plenty of muscle to hold on to.

Significant muscle loss

If she hasn't seen a vet in the last couple of months, please book a visit and ask about her muscle condition score. Once medical causes are ruled out, Whole-Cat can support the daily side.

Why "just feed her more" stalls

Food is the fuel, so keep feeding her well. But fuel only helps if her body can use it.

What it covers More food Plain taurine Whole-Cat
Calories (the fuel) ✓ – –
Moves fuel into muscle cells – – ✓ L-carnitine
Turns fuel into energy – – ✓ CoQ10
Heart support Varies ✓ ✓ Taurine
Easy for picky seniors Varies ✓ ✓ Tasteless

What the research actually says

No miracle claims. Just what's been measured, and what hasn't.

L-carnitine and lean muscle

In a 169-day study at Hill's Pet Nutrition, healthy adult cats given extra L-carnitine ended with more lean body mass than cats on the same food without it. A small, early study, but a clear direction.

Burn fuel, spare muscle

Once the fuel is inside, CoQ10 helps convert it into usable energy. The body makes its own, but studies in people and lab animals show it makes less with age.*

CoQ10, honestly

Her heart is the hardest-working muscle she has, and it needs taurine. Cats can't make enough, and heat-processed food loses a large share. Ours is never cooked.*

What to expect

Daily support, not a quick fix. This is the realistic timeline.

Days 1–7

The habit settles in. Most cats eat it without noticing a thing.

Weeks 2–4

Some owners see more get-up-and-go first: more jumps, more wandering, more interest at mealtimes.

Weeks 4–8

The first thing to watch for on the scale is holding steady. For a cat who's been sliding, that's a real win.

Month 3 on

This is where muscle changes, if they come, start to show up under your hand. Consistency matters more than anything.

Track it at home: once a month, weigh yourself, then weigh yourself holding her, and write down the difference. Do the back check on the same day.

From owners of older cats

The 60-Day Back Check Guarantee

Do the back check tonight. Give her 60 days of Whole-Cat. If you're not happy with what you see and feel, contact us and we'll refund your order in full.

★★★★★

She look so bad before this whole cat, like she was dying but started giving it to her every day now she want to eat, be loving sleep with me again and actually using the cat trees we have. Usually she would just lay on my computer desk and not do much. Whole cat help so much I'm be ordering again

Christina S. - Verified buyer

★★★★★

My cat was starting to get very thin and I didn't know why. He has a tremendous appetite but was still losing weight. I ordered this product and could tell within just a few days that he was feeling perkier and after 2 weeks he has already put some weight back on. I'm very happy with this product

Donna I. - Verified buyer

★★★★★

My siamese cat was getting thinner that I saw her spine and 2 weeks on the powder her weight is back on🥰. My tabby cat no energy. But both are healthy, good appetite and energetic.

Christina S. - Verified buyer

What to expect

  • Scoop one level 2 g scoop (included) once a day.

  • Stir it into her wet or dry food. For fussy cats, start with half a scoop for the first week.

  • Keep it daily. One tub lasts one cat 30 days, or two cats about 15.

Supplement Facts

Serving size: 1 scoop (2 g). 30 servings per 60 g tub

Taurine (never-cooked) 375 mg
L-carnitine 175 mg
Coenzyme Q10 20 mg
Glycine (carrier) balance

For adult cats. Keep out of reach of children. Store in a cool, dry place.

The 60-Day Back Check Guarantee

Do the back check tonight. Give her 60 days of Whole-Cat. If you're not happy with what you see and feel, contact us and we'll refund your order in full.

  • The 60-Day Back Check Guarantee

    Do the back check tonight. Give her 60 days of Whole-Cat. If you're not happy with what you see and feel, contact us and we'll refund your order in full.

Questions

Will Whole-Cat make my cat gain weight?

It isn't extra calories, so it won't add weight on its own. It supports the muscle and energy systems that help her use the food she already eats. If she needs to gain, calories come from her food. For many owners, the first win is her weight holding steady.

My vet said she's "just old." Should I go back?

If she's losing weight fast, eating more but getting thinner, drinking more or vomiting, yes. Those need a vet. If she's been checked recently and those are ruled out, daily nutritional support is a reasonable next step. Tell your vet you're adding it.

She's picky. Will she eat it?

It's tasteless and odorless, and most cats don't notice it in wet food. For very fussy cats, start with half a scoop mixed into a small portion she always finishes, then build up.

Is it safe with kidney issues or medication?

Taurine and L-carnitine are water-soluble and generally well tolerated. If she has kidney disease, heart disease or takes any medication, check with your vet before adding any supplement.

How is this different from plain taurine powder?

Plain taurine covers one of the three. Whole-Cat includes a full daily dose of taurine plus L-carnitine and CoQ10, so you can switch over instead of adding a second product.

How is this different from senior cat food?

Food is the fuel. Whole-Cat supports how her body moves that fuel into her cells and turns it into energy. They work together, so keep feeding the food your vet recommends.

How long until I notice anything?

Energy and behavior changes often come first, within a few weeks. Muscle and weight change more slowly, over two to three months. That's why the guarantee is 60 days.

What's your guarantee?

60 days, money back. If you're not satisfied for any reason, contact us for a full refund. Subscriptions can be cancelled anytime.

The 60-Day Back Check Guarantee

Do the back check tonight. Give her 60 days of Whole-Cat. If you're not happy with what you see and feel, contact us and we'll refund your order in full.

She's kept you company for years. This is one small thing you can do back.

One scoop a day. Sixty days to see for yourself.

60-day money-back guarantee