Ark Naturals Gray Muzzle Heart Health Senior Dog Treats, 4.23-oz bag, 60 count

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Gray Muzzle's Heart Healthy! Wags Plenty! Treats are designed to help improve heart function in aging dogs.  They use a proprietary blend of vitamins and minerals that has been shown to improve blood pressure and circulation in senior dogs.

Key Benefits

  • All-natural ingredients with an excellent taste for heart health
  • No corn, wheat, soy, by-products, artificial colors, flavors or preservatives
  • Promotes normal heart function, heart muscle and rhythm, and healthy blood pressure and circulation
  • Vet recommended for senior dogs to help combat side effects of aging
  • Safe for dogs 5 years and older

See all items by Ark Naturals

  • Item Number
  • Brand
    Gray Muzzle
  • Breed Size
    Small, Medium, Large, All Breeds
  • Food Form
  • Lifestage
  • Made in
    United States

Nutritional Info


  1. Active Ingredients Taurine, Acetyl-L-Carnitine, Dandelionextract, Hawthorne Berry Extract, Bilberryextract, Egg Albumin, Coenzyme Q10 (325 mg). Inactive Ingredients: Dried Poultry Liver Flavor, Glycerin, Dried Sweet Whey, Vitamin E Supplement, Vegetable Gelatin, Black Malt Extract.

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Senior Support

Ark Naturals' Gray Muzzle line of pet products is specially formulated for senior cats and dogs. The supplements, shampoos, treats and dental chews are specially made to address your best friend's evolving needs as he matures.

Senior Support
Formulas You Can Trust

Formulas You Can Trust

Each wholesome formula is 100% made in the USA and contains potent, human grade ingredients for solutions that are effective and gentle for seniors. Gray Muzzle senior dog treats include ingredients like gingko biloba to help with memory and dandelion extract to support heart health. Plus, Ark Naturals Gray Muzzle No Shampoo! Shampoo for Dogs & Cats is a waterless, no-rinse, foaming shampoo that offers a stress-free way to get older pets clean.

A Superior Level of Care

All Ark Naturals products are developed and formulated by the executive director of the American Holistic Veterinary Medical Association, Dr. Nancy Scanlan, D.V.M., and Dr. C. Leigh Broadhurst, Ph.D. These top-notch specialists ensure that only the best ingredients go into each and every formula so that your pet receives a superior level of care.

A Superior Level of Care
About Ark Naturals

About Ark Naturals

Ark Naturals was founded by husband and wife, Jay and Susan Weiss in 1996. Their mission is to create all-natural, organic products that support and maintain your pet's general care from head to toe. As the leading manufacturer of solutions for pet needs, Ark Naturals provides wellness and maintenance solutions using organic, holistic ingredients.

Shop Ark Naturals

Customer Reviews

Ark Naturals Gray Muzzle Heart Health Senior Dog Treats is rated 4.5 out of 5 by 17.
Rated 5 out of 5 by from So far so good I gave this f product five stars, but I have not used it long enough to really make an appropriate assessment. Having said that, my nearly 17 year old Greyhound, Husky, Shepherd lab multi-mix just jumped up onto the bed within a half hour of taking this supplement. Granted I give my dogs organic food, supplemented with all of the right spices (turmeric, ginger, etc.) But, I think this Ark Naturals Gray Muzzle treat plus the kelp, nutritional yeast,etc. puts a spring in the old girl's step. I will write an update and see how things go after a month on this product. Since this is not the only product that I give it is hard to say what helps her. Perhaps it is a combination of factors. However, this product does have some important ingredients to bolster cardiac health, such as taurine and hawthorne berry. I hope I can continue to rate it 5 stars, which would be a plus for me and my senior gal as well as Ark Naturals and Chewy!!
Date published: 2014-08-10
Rated 5 out of 5 by from Love this product! We have a senior dog who came to us with severe pulmonary hypertension with his heart due to a bad case of heartworms he had prior to our taking into our rescue group - which we immediately treated once adopting him. He's a basset/spaniel mix and about 40 lbs. Because of his heart condition, he's never been a particularly active dog. He sees a cardiologist, and for the most part, does now have his condition at a healthy moderate point. We started giving him these treats about a week ago and I don't know if it is a coincidence but his energy level is way up and he's super active. He's quite engaged and very happy. We've had him as part of our family almost four years now and he's never been this active. I'll write an update if anything changes, but right now I'm attributing this dramatic change to this supplement, which for him, seems to be a great complement to his daily routine and is affecting him in a positive way.
Date published: 2015-10-01
Rated 2 out of 5 by from I'm sorry ,my dog is disappointed My dog just didn't care for the treats & would not eat them.. But I like the convenience of purchasing your other products & shipping was prompt.
Date published: 2017-01-21
Rated 5 out of 5 by from Heart Murmur I recently went to the vet and discovered that my senior dog has a heart murmur, with early stages of heart disease. One of the symptoms is that she wakes up in the middle of the night coughing due to her irregular heart rate/valve flow. The product claims to help with "heart rhythm." While I don't know if this is the product or just mere coincidence, she has now been sleeping throughout the night and has been taking it for about two weeks now. There have been no other changes to her diet. While I'm not endorsing this as being a cure to anything, there is a noticeable difference in that her symptom has ceased. I'd be curious to see if this happens with anyone else. I will definitely be purchasing this product again.
Date published: 2014-06-20
Rated 5 out of 5 by from Ark Naturals Gray Muzzle Heart Health Treats A friend recommended these when we found out my senior dog had a heart murmur and it was getting worse. Her dog was a rescue with heart worm that had heart damage and a murmur after the treatment. After a few months on the treats, the murmur was gone. Our wonderful "Piggie" had just gone through heart x-rays at our regular vet and an EKG at a doggie heart specialist. We got the treats about 3 months ago, just went back for another x-ray, and her heart murmur had improved! The vet shared the x-rays with the heart specialist and he agreed. She is getting better. We will keep giving her the daily treats and have faith that she will continue to improve. She loves them and won't leave the kitchen until she gets her treats every evening.
Date published: 2016-11-13
Rated 5 out of 5 by from Happy Pup First I'd like to say, my dog hates everything.... But he eats these- I am in shock! Secondly, he has been feeling Great, more pep in his step which makes me Very happy. He goes for his six month check up in four more months, I pray the doc says his heart sounds better. I am happy with what I see so far. As for Chewy's, I have been with them for years and they are The Best!! Will follow up after his next check up... Stay tuned!
Date published: 2016-10-16
Rated 5 out of 5 by from Dog Likes It My dog seems healthier and more energetic. She likes the flavor. I take acetyl-l-carnitine myself and thought this would be a beneficial supplement for an aging dog.
Date published: 2016-10-24
Rated 5 out of 5 by from Approved by Raven .... desired by her siblings ;) My Raven has been diagnosed with a leaking mitral valve. A friend suggested Grey Muzzle. Raven can't wait to get her treat and her siblings are envious !
Date published: 2016-11-04
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