K9 Gold Label

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Experiences of Top-Level Sporting Dogs, Breeders, and Professionals

Performance speaks volumes—but real stories tell the whole story.
At K9 Gold Label, we believe that the success of our supplements is best reflected in the results seen in the dogs that rely on them. On this page, owners, trainers, breeders, and professionals share their experiences with our products—from faster recovery and stronger muscles to improved focus, mobility, and overall well-being.

These testimonials come straight from real-life experiences: top-level sporting dogs, working dogs that must perform every day, puppies growing strong, and adult dogs regaining their strength and vitality. Their stories show how the right support makes all the difference.

Be inspired by others’ experiences and discover what K9 Gold Label can do for your dog.

Walter Sterk, founder of K9 Gold Label

TESTIMONIALS K9 Gold Label

Sport Whippets

We’ve been using K9 Goldlabel products for our racing whippets for a year and a half now, and we’re absolutely thrilled! Our dogs train intensively and regularly compete in races, so good nutritional support is truly essential.

Muscle performance has made a huge difference in both muscle building and stamina. Our dogs have gotten stronger, recover much faster after runs, and stay energetic until the end of a competition day. We also use Hemoglobin and, on competition days, the Electrolytes—and you can really tell the difference. While other dogs start to tire as they approach the finals, ours seem to shift into second gear.

Thanks to this fantastic support, we were even able to crown one of our dogs World Champion last September! And in fact, all of our dogs regularly make it onto the podium—something we’re incredibly proud of.

We’ve also seen amazing results in rehabilitation. One of our dogs broke his leg as a puppy while playing. We started giving him Puppy Grow, and it visibly supported his recovery. His bones have developed perfectly, and he’s now successfully competing again.

In short: whether it’s for peak performance in sports or support during recovery, K9 Goldlabel gives our dogs exactly the boost they need! 💪🐶 Lizzy

My experience with K9 Gold Label,

and why we’ve completely changed our minds.

As dog sports enthusiasts with five Dutch Shepherds, we strive to take the best possible care of our dogs. The right amount of exercise, good nutrition, plenty of rest, and appropriate supplements for optimal performance. However, finding a suitable supplement wasn’t an easy task. For years, we tried different brands, but often we didn’t see any difference in the dogs over the long term. Not only did we always have to buy small jars, but I could never find a single product that provided all the nutrients my dogs needed. This resulted in a confusing array of different supplements at home, an empty wallet, and, unfortunately, still no desired results for my dogs. Because of this, we stopped giving our dogs supplements for quite some time and relied entirely on a good diet.
 
Until I wrote to K9 Gold Label a little over a year ago, I was somewhat skeptical because of my previous experiences with supplements. A few months before a major sporting event, we started giving one of our dogs Muscle performance. I quickly noticed that it had a positive effect on her digestion. After a few days, it was clear that her recovery was easier and faster, which allowed her to easily sustain her performance throughout the long weekend of the sporting event and achieve great results.  
To my surprise, I had apparently found a supplement that fully met my requirements; I could clearly see this not only in theory but also in practice. I quickly decided to put a second dog on K9 Gold Label—a somewhat older dog with spondylosis, who’s eager to keep up but struggles with muscle building due to her condition. It was a longer journey with this dog, but with the right training regimen combined with Muscle performance, this older lady can now run alongside the younger dogs with ease. Her musculature is becoming increasingly symmetrical, allowing her to resume agility training without pain. She’s once again running our long distances with ease during canitrailing. So, without a doubt, I’ve switched my other dogs to K9 Gold Label as well, and I’d recommend it to everyone.
 
Danae Bodde

Dog Shows

My name is Maud, and I compete in dog shows with my 20-month-old male Bullmastiff, Butcher.

He’s already achieved some pretty impressive results in his young life, such as:

Best in Show (Junior) Puppy at the Kaatsheuvel Purebred Dog Festival

Best in Show Puppy, Maastricht Dog Show

Best in Show Bullmastiff Puppy in Belgium

Best in Show, Bullmastiff Junior Class in the Netherlands

3 Best in Show Junior titles: 2 in the Netherlands and 1 in Germany.

2 x Best in Show,3rd place in Breed Group 2.

1 x Best in Show,1st Place in Breed Group 2

1 x Best in Show,2nd place in Breed Group 2

Selected for the Dog of the Year show in 2024 and 2025

Selected for Crufts in 2025 and 2026

Dutch, Belgian, German, and international youth champion

Luxembourg Champion and, with a little luck, Belgian and international champion this year (he already has the points needed to be Dutch champion; however, the rule in the Netherlands is that this title can only be earned after 28 months)

And these are just a few of the highlights of his impressive show career.

Besides being a show dog, he’s also our dearest friend at home.

Ever since he was a puppy, we’ve done everything we could to raise him to be as beautiful and healthy as possible, and good nutrition—as well as supplements, including your Muscle performance, which I’ve been feeding him since March 2025—has certainly helped him look great.

Especially with a breed that grows very quickly as a puppy and becomes quite heavy, you want to feed them a diet that’s as healthy and balanced as possible.

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