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Green-lipped mussel for dogs with osteoarthritis: evidence-backed benefits, oil vs powder, dosing and how long to supplement for better mobility and joint comfort.
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Natural IngredientsOsteoarthritis affects millions of animals worldwide, impacting their daily wellbeing.
Selon l’organisation anglaise Canine Arthritis Management, osteoarthritis is the leading cause of chronic pain in dogs, with 80% of dogs over 8 years old and 35% of dogs of all ages affected.
As for cats, according to two scientific studies (Enomoto, 2020, Hardie 2002), nearly 40% of cats show clinical signs of osteoarthritis, and 90% of cats over 12 years old show radiographic evidence of osteoarthritis — almost double what is observed in dogs.
This cartilage degeneration causes pain, inflammation and loss of mobility — signs that significantly impair the animal's quality of life.
Given the limitations of non-steroidal anti-inflammatory drugs (NSAIDs), known for their digestive and renal side effects, veterinarians are increasingly turning to better-tolerated natural solutions. Among them, the New Zealand green-lipped mussel (Perna canaliculus) stands out as one of the most promising active ingredients for supporting joint health in dogs.
The green-lipped mussel, Perna canaliculus, is a mussel species native to New Zealand, primarily in the Marlborough Sounds, a region comprising 8 marine ecosystems and protected marine areas.
Interest in the green-lipped mussel stems from the observation that Māori living near the coast suffered less from osteoarthritis compared to their European peers or inland Māori.
Consequently, the anti-inflammatory properties of this mussel have been the subject of extensive research, whether in the laboratory, on living organisms or through clinical studies.
The green-lipped mussel is farmed under strict quotas imposed by the New Zealand government. Its cultivation is sustainable and does not impact marine biodiversity. Indeed, the mussels undergo selective breeding and are raised in hatcheries for several months where they feed on microalgae, ensuring full traceability and better growth. They are then dispersed into their natural environment suspended on ropes where they are farmed for a further two years. This farming method helps preserve marine ecosystems.
Furthermore, most companies specialising in green-lipped mussel farming in New Zealand contribute to rehabilitation programmes in wild areas to promote marine biodiversity.
Discover the origin of the New Zealand green-lipped mussel
The green-lipped mussel is rich in essential fatty acids Omega-3, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), recognised for their anti-inflammatory properties.
The Omega-3 from the green-lipped mussel limit the production of prostaglandins and leukotrienes, two key molecules in joint inflammation. They thus act on:
The green-lipped mussel is also one of the few species in the world to contain eicosatetraenoic acid (ETA). Like all Omega-3, ETA has the ability to block the enzymes responsible for inflammation. But ETA goes further, acting at the genetic level to reduce the production of these inflammatory enzymes.
Finally, the green-lipped mussel is an excellent source of antioxidants and vitamins, making it a true superfood.
Read our article on the benefits of Oméga-3 for joint inflammation
The US National Library of Medicine lists more than 220 studies on the green-lipped mussel. While most concern its effects on joint problems such as osteoarthritis, some also explore other areas:
Finally, several studies have assessed its bioavailability (its ability to be absorbed by the body) as well as its potential side effects, which are generally rare and mild.
Ces recherches ont permis de mieux comprendre le anti-inflammatory mechanism of the green-lipped mussel.
It acts by modulating certain chemical reactions linked to arachidonic acid, a molecule naturally present in the body. This acid is transformed by two major "enzymatic pathways":
These two pathways are responsible for the production of pro-inflammatory substances (prostaglandins and leukotrienes) that amplify joint pain and stiffness.
Green-lipped mussel extracts have shown their ability to inhibit the activity of these enzymes, much like "turning down the volume" of inflammatory signals in the body. The result: less inflammation, less pain, and better cartilage protection.
Many researchers have studied its effects on animals' joints. Veterinary studies conducted on dogs with joint disorders have highlighted the following benefits:
These studies have also established that the effects of the green-lipped mussel are more visible and more effective after prolonged consumption of green-lipped mussel extracts over several weeks, between 6 and 12 weeks of treatment.
Finally, scientific research has found that green-lipped mussel extracts are generally very well tolerated by animals. The only adverse effects recorded appear mild and mainly involve digestive issues (nausea, flatulence).
Dietary supplements for dogs and cats derived from the green-lipped mussel come in different forms, each with its own advantages and disadvantages.
Green-lipped mussel powder contains essential fatty acids such as Omega-3, proteins, glycosaminoglycans (glucosamine), minerals such as iron, and vitamins such as vitamin B12.
Green-lipped mussel powder can be offered in bulk or in capsule form.
While green powder may seem appealing, particularly due to its price, which is generally lower than oil, it nevertheless has several disadvantages:
Green lipped mussel oil is the most concentrated form of Omega-3. Proteins, vitamins, and minerals are removed during supercritical CO2 extraction.
Green lipped mussel oil is packaged either in a bottle as a liquid to be administered directly into the animal's mouth or in its food, or as a soft capsule to be given in the animal's mouth.
Mussel oil is very sensitive to oxidation, meaning its Omega-3 are sensitive to heat, air and light. That is why green lipped mussel oil needs to be stored in the refrigerator to preserve its active compounds, and is generally best consumed within a short period.
Green lipped mussel oil generally costs more than green-lipped mussel powder, particularly because it involves an additional processing step and requires much larger quantities of green-lipped mussels. However, it offers considerable advantages:
As with purchasing any dietary supplement for your animal's wellbeing, it is essential to choose a reputable laboratory that can guarantee the safety and quality of the product.
In general, it is recommended to ensure that the laboratory carries out analyses on the products it manufactures, such as heavy metal, stability testing, or lipid profiling to substantiate the Omega-3 content.
The laboratory should be easily contactable by phone, email or chat to answer your questions. Finally, user reviews can reassure you before your purchase.
When it comes to green-lipped mussel dietary supplements, certain points may warrant specific consideration:
The various clinical studies conducted on green-lipped mussel extracts all use different dosages. For dogs, these dosages vary for example between 4 and 49 mg / kg / day.
It is also worth referring to the recommendations of animal health professionals regarding EPA and DHA dosages, which are much better documented than green-lipped mussel extracts. Thus, the National Research Council (NRC) in Canada has defined a recommended dose of EPA and DHA for dogs of 14 mg / kg / day. This dosage can be increased for dogs with osteoarthritis, provided it does not exceed 175 mg/kg/day¹³.
That is why it is essential to select a dietary supplement for which the nutritional composition is detailed with the quantity of Omega-3.
In any case, dietary supplement manufacturers are required to indicate dosage recommendations on their packaging. It is therefore advisable to follow the indicated dosage. In general, dosages are recommended based on weight and animal type.
Most studies evaluate the effects of the green-lipped mussel over several weeks, which is why it is advisable to administer a green-lipped mussel dietary supplement for a minimum duration of 4 weeks to observe significant results.
Dietary supplements derived from the green-lipped mussel present no risk when used continuously over the long term.
The green-lipped mussel (Perna canaliculus) is backed by a documented anti-inflammatory mechanism and solid veterinary literature showing reduced pain, improved mobility and good tolerance in dogs.
For optimal results: favour oil extracted by supercritical CO₂, verify traceability and testing (lipid profile, oxidation), follow the dosage, and maintain supplementation for a minimum of 4 to 12 weeks.
Alongside an appropriate diet and gentle activity, the green-lipped mussel is a natural ally for supporting daily joint comfort.
PERNIXOL®: a liquid formula rich in green lipped mussel oil from New Zealand, developed by Laboratoire Sensilia, to support your dog's joint flexibility and comfort.
This article was written by the R&D team at Laboratoire Sensilia, experts in animal nutrition.
