








The Paw Parent - Cardiac Shield Powder
Backed by Science
Zero progression in a 6-month blinded trial. 1 in 3 dogs improved valve function. Safe with Vetmedin.
LIMITED PRODUCT LAUNCH OFFER
This product just launched and for this reason you get an exclusive discount of up to 50% off on the first batch. The first batch is expected to sell out within 1–2 weeks so we urge you to take advantage now.

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93% of Dogs See Results
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6-9 Days Delivery
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90 Day Money Back Guarantee
Before & afters
2,847+ happy dogs with more energy and stable hearts, results within weeks.
Media
Recommended by magazines and universities around the world
"Cardiologists are now recommending Cardiac Shield alongside Vetmedin"
"So far, The Paw Parent has helped 12,000+ dogs with MMVD"
"100% pure powder with zero fillers - exactly what we recommend"
"Remarkable heart stability across multiple dog breeds"
"Redefining MMVD treatment with the best formula"
""This is the product of the future""
"Cardiac shield shows clinical efficacy for Myxomatous Mitral Valve Degeneration"
"The natural alternative to prescription NSAIDs"
"If your dog has hart murmur, this powder is worth trying"
"Dogs with MMVD are getting their spark back with this formula"
Ingredients come first
Every single ingredient in the tub is added with one purpose: To protect your dog's heart before the damage becomes irreversible. 9 active ingredients targeting every layer of the MMVD cascade — inflammation, valve breakdown, energy loss, and oxidative stress. Each one in its most bioavailable form. Unlike single-ingredient heart supplements that only address one piece of the puzzle.
What's inside Cardiac Shield
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Taurine (500mg)- The #1 cardiac amino acid. Regulates the RAAS system that drives heart enlargement.
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Green Lipped Mussel - Blocks both COX-2 and 5-LOX inflammation pathways. 2.96x reduction in arrhythmia risk.
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Magnesium Glycinate - Anti-arrhythmic. ATP cofactor that keeps the heart's electrical rhythm stable.
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Fish Oil - Produces SPMs that actively resolve cardiac inflammation. Triglyceride form, not cheap ethyl ester.
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L-Carnitine - Transports fatty acids into heart mitochondria. Failing hearts lose this ability first.
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CoQ10 Ubiquinol - Breaks the oxidative stress loop. Reduced troponin I in 71% of CHF dogs. The active form, not cheap ubiquinone.
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Vitamin E - Last line of antioxidant defense against ROS damage to heart tissue
MMVD sucks, we don't
Why Cardiac Shield is incredibly powerful
1. THE PURINA STUDY THAT STARTED IT ALL
In 2019, Purina and veterinary cardiologist Dr. Li published a 6-month blinded clinical trial on dogs with Stage B1 MMVD a heart murmur, but no enlargement yet. The supplement group: zero dogs progressed. Their hearts didn't enlarge. 30% actually improved valve function. The control group? Their hearts kept getting bigger. This study is the foundation Cardiac Shield is built on.
2. 9 INGREDIENTS. 6 ROOT CAUSE LAYERS
MMVD doesn't have one cause. It's a cascade, inflammation triggers valve damage, which activates the RAAS system, which starves the heart of energy, which overwhelms its antioxidant defenses. Single-ingredient supplements address one layer and hope for the best. Cardiac Shield targets all six. Every ingredient has a specific job in the cascade. Nothing is there by accident.
3. SAFE WITH VETMEDIN — NO HAWTHORN
This is the question every cardiologist asks first. Hawthorn berry, found in most heart supplements, interferes with Vetmedin (pimobendan), the #1 prescribed heart medication. Cardiac Shield contains zero hawthorn. It was formulated specifically to work alongside your cardiologist's protocol, not against it.
Why Paw Parents dogs see results faster
Scoop - sprinkle - done
Simple, 30-second ritual
So easy even your dog will remind you
USED BY 8,000+ DOG OWNERS WITH AMAZING RESULTS
POWDER - EVERY MORNING
Sprinkle one scoop over your dog's food every morning. One scoop for dogs under 35 lbs, two scoops for larger breeds. Most dogs don't even notice it's there, so just mix it into wet food or sprinkle it over kibble and let them eat like normal.
CONSISTENCY - DAILY USE
Use it every single day. The active compounds build up in your dog's system over 2 to 4 weeks, and that's when the real heart and valve support takes hold. Don't skip days. MMVD is progressive, so the goal is continuous protection. The dogs that hold their hearts stable are the ones whose parents never miss a morning.
NO OTHER SUPPLEMENTS NEEDED
Don't waste money stacking other products on top. Cardiac Shield already contains the full cardiac cascade in one scoop: taurine, omega-3s, CoQ10 ubiquinol, L-carnitine, magnesium and more, each in its most bioavailable form. Adding separate heart supplements won't speed up results, and it risks doubling up on the same ingredients or upsetting your dog's stomach.
The Science
PubMed has hundreds of studies on the nutrients inside Cardiac Shield and canine heart health. The right blend has been shown to slow MMVD at its earliest, most treatable stage. Some results from a blinded, placebo-controlled trial:
read more studies hereThe Proof
Julia
I was skeptical at first, but a few weeks in I noticed Rosie wasn't coughing at night the way she used to. By week 4 her energy was back, trotting ahead of me on walks instead of lagging behind. By week 6 she was bouncing around the yard like a puppy again. After her murmur diagnosis I felt helpless. This is the first time I've felt like I'm actually doing something for her heart.
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Latest Facebook Reviews
Barbara Thompson
I was so skeptical because we tried everything for our dachshund after her murmur diagnosis. Fish oil did nothing. This is the first thing that actually got her energy back and stopped the coughing.
Linda McCarthy
My 3 year old Frenchie was tiring out on short walks and coughing at night. Started this 3 weeks ago and yesterday he ran to the door when the mailman came. Haven't seen him do that in over a year. Keeping a good eye on him to make sure he doesn't get too active haha!
Carol Ann Davis
Just ordered my 3rd jar. My vet noticed the difference at his last heart check before I even told her what I was giving him. She asked what changed because his energy and stamina improved so much. That says everything
Debbie Wilson
My sweet girl is 14 and I thought her slowing down and the coughing was just age. Tried this because my neighbor recommended it for her dog. 2 weeks in and she's back to following me around the house again. I got my shadow back
Latest Facebook Reviews
Marissa Reed
We're about 2 weeks in and I'm already seeing him with more energy in the mornings. He used to just lay there, worn out. Now he's up and moving on his own. Cautiously optimistic but this is more progress than we saw with the fish oil after 2 months.
Michael Harrison
Ollie was diagnosed with a murmur and after they told me it was getting worse I was terrified. Three weeks into this and he was chasing his ball around the yard for the first time in months. I stood there and just cried. Not making any big claims yet but that moment was everything.
Dana Rummery
My dachshund Pepper was coughing and exhausted after even a little activity. We followed everything the vet said and added this at week two. By week four she was trotting around on her own again. Not perfect and she still has slow days but the difference from where she was is night and day. Wish I had known about this after her diagnosis.
Catlyn Johnson
My Cavalier is only three and the vet told me he is already at high risk for heart disease because of his breed. No symptoms yet but I started this as a preventative measure two months ago. He has more stamina and the tiredness he had after long walks is basically gone. Hopefully we never reach the medication stage but at least I feel like I am actually doing something about it now.
Vet Recommended
Dr. Susan Mitchell
Three weeks in. He was tearing around the garden again yesterday like his old self. First time in months. That's all I needed to see.
New Improved Formula
- 2X STRONGER CONCENTRATION - more heart-supporting power in every scoop
- IMPROVED EXTRACTION - preserves more of the active compounds that protect the heart
- 100% PURE - stronger formula, zero fillers or sodium
- 9 ACTIVE INGREDIENTS - the complete cardiac cascade in one scoop
How The Paw Parent Performs Miracles
We searched the world for ingredients that actually work. We found the foundation in New Zealand's Marlborough Sounds, where ice-cold waters and untouched coastline produce the world's most potent Green Lipped Mussels. Just nature's most powerful anti-inflammatory, at the heart of our formula.
ETA Omega-3
The rarest omega-3 on the planet.
Found almost nowhere else in nature, only in Green Lipped Mussels from New Zealand's pristine Marlborough Sounds. It calms the chronic inflammation that drives valve degeneration, without touching your dog's liver, kidneys, or gut. What the research shows:
- Inflammation is a key driver of MMVD progression
- Zero reported side effects
- 2-3 weeks to visible changes in energy
CoQ10 Ubiquinol
Refuels the failing heart's energy supply
Refuels the failing heart's energy supply.
As MMVD advances, strained heart muscle leaks troponin, a marker of cell damage. In a clinical study of dogs with MMVD, CoQ10 reduced troponin in 71% of dogs, a sign the muscle was under less strain, alongside improved cardiac function.
Same Omega-3 Goal. Better Delivery.
You've probably tried fish oil.
Most heart-focused dog owners have. The difference is absorption: Green Lipped Mussel carries its omega-3s in phospholipid form, ready for your dog's body to use immediately, while standard fish oil comes as ethyl ester that the body absorbs far less efficiently.
Measured. Documented. Blinded.
This isn't marketing. It's peer-reviewed science.
In a 6-month blinded, placebo-controlled trial, the cardiac nutrient strategy this formula is built on stopped disease progression in 100% of dogs, improved valve function in 1 in 3, and physically shrank heart enlargement while untreated hearts grew.
Real customers, real results
2,847+ Reviews
"If we don't help you, we don't want your money!"
If our formula doesn't help your dog move easier within 90 days of daily use, we don't want your money. We know that our solution is extremely effective. But we also know that it's not going to work for every dog and their owner.

Melissa A Kubacki
We're about 2 weeks in and I'm already seeing him with more energy in the mornings. He used to just lay there, worn out. Now he's up on his own. Cautiously optimistic but this is more progress than we saw with the fish oil after 2 months.
Charlene Cawley Massey
Couldn't make it through a walk without stopping to catch her breath for months. Three weeks in and she did the whole loop this morning without slowing down. I stood there and couldn't hold back tears. Don't want to jinx it but I haven't seen that in so long.
Jennifer Thompson
Pepper was coughing and exhausted after any little bit of activity. Did everything the vet said and added this at week two. By week four she was trotting around on her own again. Still has slow days but the difference from where she was is night and day. Wish I had known about this after her diagnosis.
Brandon Rodriguez
Vet told me Gus is high risk for heart disease because of his breed. No symptoms yet but started this two months ago as prevention. The tiredness he had after long walks is basically gone. At least I feel like I am actually doing something about it now.