Does Kelp Help Dogs Teeth? Understanding Periodontal Disease in Dogs
•Posted on March 28 2026
Last updated on May 11 2026

What is Periodontal Disease in Dogs?
Periodontal disease in dogs is a progressive inflammatory condition caused by bacteria in the mouth that damages the gums and supporting bone structures. This condition starts off slowly and can progress to more advanced stages if it is not caught early. It is caused by a build-up of plaque, which is a sticky film of bacteria that constantly forms on the teeth. Maintaining healthy teeth is crucial to preventing complications associated with dental disease. Feeding dogs bones is a traditional method to help remove tartar buildup and keep their teeth healthy through natural abrasion.
The good news is that it is fairly easy to catch it early and periodontal treatment at the vet is readily available. However, treatment and the general cost of dog teeth cleaning can be quite expensive. As responsible dog parents, it is our job to keep a close eye on them and stay alert for any signs of gum problems or discomfort before they escalate, as untreated periodontal disease can ultimately result in tooth loss.
Signs & Symptoms of Periodontal Disease
The first signs of a dog with dental disease are usually redness and bleeding of the gums. As the condition progresses, yellowish-brown tartar will form on the teeth near the gums, leading to tartar buildup. This tartar buildup contains bacteria and other materials that can irritate the gums and cause them to recede from your dog’s teeth.
Other symptoms may include:
- Bad breath, known as halitosis
- Red or swollen gums
- Gums that appear to pull away from teeth
- Loose teeth or teeth moving out of position
- Pain in the mouth or when chewing
- Swelling around the face and neck
- Excessive drooling
- Decreased appetite and weight loss

What Causes Periodontal Disease?
The primary cause of periodontal disease is the accumulation of plaque. Plaque is a complex mixture of bacteria, food debris, and salivary components. When left on the tooth surface, it forms dental calculus (tartar). The RSPCA notes that dental disease is one of the most common health issues seen by veterinarians, often stemming from a lack of daily oral care.
Tartar acts as a reservoir for bacteria, exacerbating inflammation and causing injury to the gum tissue. If untreated, the infection can enter the bloodstream, potentially leading to complications in the liver, kidneys, and heart. Scientific evidence confirms a strong link between advanced periodontal disease and systemic health issues in dogs.
Is Your Small Dog More at Risk of Periodontal Disease?
Research published in Frontiers in Veterinary Science, small dog breeds prove to be more likely than large breeds to develop dental problems. The dog breeds included in this study were Japanese Chins, Miniature Schnauzers, Chihuahuas, Pomeranians and West Highland White Terriers.
A double-blind study found that a 90-day administration of Norwegian Kelp (Ascophyllum nodosum) efficiently decreased plaque and calculus accumulation. Dogs receiving this natural seaweed also exhibited lower concentrations of volatile sulphur compounds (the cause of bad breath) and overall better oral health compared to the placebo group.
Why Are Small Dogs More at Risk for Periodontal Disease?
Veterinary experts believe this risk is due to a small dog's more compact head and jaws. This leads to overcrowding of their teeth, which means there is less space between teeth and more places for food and other debris to lodge. These gaps allow bacteria to grow and ultimately cause gum infection.
That is not to say that large dog breeds have zero risk for periodontal disease. All dogs will suffer from gum infections at some point if dog teeth cleaning is not made a priority. Large dogs are also prone to fractured teeth from heavy chewing, which can provide a gateway for bacteria.
Periodontal Disease Treatment
Prevention remains the most effective approach to canine dental care. Brushing your dog’s teeth daily with a dog-specific toothbrush and toothpaste is the gold standard for removing plaque. If daily brushing is a challenge, dental wipes, treats, and sticks can serve as helpful additions, though they do not replace the mechanical action of a brush. Dental chews can also help scrape plaque and provide enrichment, but they mainly address oral health superficially.
Professional veterinary cleaning is essential for removing tartar beneath the gum line that home care cannot reach. This professional cleaning is performed by veterinarians and is important for maintaining your dog's oral health. If your dog shows signs of lethargy or stops eating, seek a professional assessment immediately, as these may be signs of advanced infection or oral pain.
Water additives are another option that work systemically through saliva to support oral health, offering a simple alternative to traditional dental products.

What is Norwegian Kelp?
Norwegian Kelp has been used for centuries as an alternative medicine to treat various ailments. Ascophyllum nodosum (Norwegian Kelp) is a nutrient-dense brown seaweed that works systemically to inhibit the growth of plaque-forming bacteria. Harvested from the cool waters of the North Atlantic, it is a natural source of essential minerals, specifically alginates.
Petz Park Tip: Norwegian Kelp’s main component is alginate. Alginate provides many benefits for oral health because it has been shown to bind to heavy metals and bacteria, both of which can lead to periodontal disease if they are allowed to accumulate in the mouth.
Aside from being great for teeth and gums, Norwegian Kelp also contains a myriad of nutritional benefits.
- It contains iodine, which helps regulate thyroid glands and potassium, which helps prevent hypertension.
- It contains over 70 minerals and vitamins and is also an excellent source of dietary fibre and protein.
- Because it grows in the ocean, it contains beneficial trace minerals like selenium and important enzymes that support digestion and nutrient absorption.
- It is used in many foods and beverages as a flavouring agent and thickener because it has a salty flavour similar to that of soy sauce.
How Can Norwegian Kelp Help Prevent Periodontal Disease in Dogs?
While there are many teeth cleaning products for dogs on the market, Norwegian Kelp is unique. It is a single, powerful ingredient packed with nutrients like iodine, potassium, calcium, magnesium, iron and zinc. It works systemically, meaning it is absorbed into the bloodstream and released through the saliva to work on the entire mouth.
Norwegian Kelp provides these specific benefits:
- It helps prevent periodontal disease by killing bacteria that cause plaque build-up and can help reduce plaque accumulation on dogs' teeth.
- It contains natural antioxidants that help reduce inflammation, promote gum health, and support overall oral wellness.
- It helps improve oral hygiene by reducing harmful bacteria and plaque formation.
- It contains natural compounds that promote the healing of damaged gum tissue.
- The naturally occurring iodine helps to reduce inflammation and swelling.
- It supports thyroid function, which is vital for a healthy metabolism.
The Power of Norwegian Kelp
Vets love the dental benefits of Norwegian Kelp, especially when used as a kelp supplement for dogs. Feeding a kelp supplement as part of your dog's regular diet can support dental health, but it's crucial to follow the recommended amount to avoid excess iodine intake, which may cause hyperthyroidism. Always consult with your vet to determine the proper dosage for your specific breed and ensure you are sourcing a quality supplement.
Generally speaking, if your dog has periodontal disease, you should consider switching to a plaque control for dogs containing Norwegian Kelp. This supplement can help stave off the ill effects of plaque build-up by promoting healthier blood flow to the gums and supporting tooth remineralisation. Whether your dog has a dental condition or not, adding Norwegian Kelp can provide numerous benefits, including better oral health and a healthier digestive system.
The Science of Alginates: How Kelp Works at a Molecular Level
To truly understand why Norwegian Kelp is the best plaque remover for dogs, we have to look at the unique properties of alginates. Alginates are natural polysaccharides found in the cell walls of brown seaweed. When your dog consumes kelp, these compounds are absorbed and eventually secreted back into the mouth via the salivary glands.
Once in the saliva, alginates act as a powerful anti-adhesive agent. They change the chemical composition of the saliva, making it much harder for the sticky biofilm of plaque to attach to the smooth surface of the tooth enamel. This means that even if bacteria are present, they cannot form the complex colonies required to create hard tartar. Furthermore, for dogs that already have existing calculus, the presence of alginate helps to gradually soften the mineralised structure, making it easier for you to remove dog teeth plaque through gentle brushing or even through the natural abrasive action of chewing.

Expert Guide on Dog Plaque Removal at Home
When embarking on a mission to remove dog plaque, consistency is your most powerful tool. Plaque can begin to mineralise into tartar within 24 to 48 hours, which is why a weekly approach is simply not enough. For the best results, aim for a daily routine that includes cleaning your dog's teeth to support optimal oral health, targeting the gum line where bacteria hide.
Many owners find that using a finger brush is a great way to start if their pet is resistant to a traditional toothbrush. Focus on the premolars and molars at the back of the mouth, as these are the areas most prone to heavy build-up. By combining this mechanical action with dog supplements and specialised dog plaque remover powder, you are attacking the problem from two different angles, ensuring a much cleaner and healthier mouth for your pet.
Understanding the Stages of Dog Gum Disease
Knowing how to remove dog teeth plaque effectively requires an understanding of what stage your dog is currently in.
- Stage 1 Gingivitis: This is characterised by a thin red line along the gums. At this stage, the condition is completely reversible with diligent home care and Norwegian Kelp.
- Stage 2 Early Periodontitis: You may notice more significant redness and the first signs of gum recession. A professional veterinary cleaning is usually recommended here to reset the mouth.
- Stage 3 Moderate Periodontal Disease: Deep pockets form between the tooth and the gum, housing massive amounts of bacteria. This causes significant pain and requires veterinary intervention.
-
Stage 4 Advanced Disease: The final stage, in which bone loss occurs. At this point, removing plaque is no longer the priority, as the teeth are often loose and must be extracted to prevent systemic infection.
Final Expert Tips and Key Takeaways
- Observe the Breath: If your dog's breath smells unusually foul, it is likely a sign of active bacterial infection rather than just old food.
- Use Proper Tools: Never use human toothpaste, as it often contains xylitol, which is highly toxic to dogs.
- Small Breed Care: If you own a toy breed, double your efforts. Their tiny mouths are magnets for dental issues.
- Natural Support: Incorporating Norwegian Kelp is a low-stress way to support dental health without the daily struggle of a toothbrush if your dog is particularly anxious.
Frequently Asked Questions
What is the best plaque remover for dogs?
A combination of mechanical brushing and a natural seaweed supplement like Norwegian Kelp is considered the gold standard for home dental care.
How can I remove dog teeth plaque if my dog hates brushing?
If brushing is a struggle, you can use dental wipes or add a kelp-based powder to their meals. These methods help reduce the bacterial load in the mouth without the need for a brush.
Is Norwegian Kelp safe for all dogs?
Kelp is rich in iodine, which is great for most dogs, but should be used with caution in dogs with existing thyroid conditions. Always consult your vet for the correct dosage.
References:
- Gawor, J., et al. (2018). Effects of Edible Treats Containing Ascophyllum nodosum on the Oral Health of Dogs. Frontiers in Veterinary Science
- RSPCA: Importance of Dental Health