Would Your Senior Dog Benefit From Green Lipped Mussels?

Would your senior dog benefit from New Zealand green lipped mussels

Are green lipped mussels the next “great thing” for our senior dogs? Let’s take a look and see!

What are they and are they really green?

Green lipped mussels (or GLM) are a type of mussel found only in New Zealand, and the shell is rimmed in green.


  • Natural inflammatory
  • would your dog benefit from New Zealand green lipped musselsReduces pain
  • Protects joints
  • Boosts the immune system
  • Strengthens bones
  • Helps in repair of cartilage
  • Preventative

What makes green lipped mussels so powerful?

Just like fish, green lipped mussels contain Omega-3 fatty acids, but it is the combination of fatty acids, minerals and antioxidants found in the mussels that makes them so powerful.  

How much to give

There is no set answer for this one, as the amount of GLM that will be beneficial for your senior dog depends not only on his or her size, but also the severity of the condition. The amount given may also have to be increased or decreased depending on the results you see…or don’t see.

Here are some suggestions to help get you started 

Speak to your vet and ask his opinion

Follow the recommendations on the label of the brand you purchase

In a study published in the Journal of Nutrition, significant improvement was seen in dogs given the following amounts –

  • Dogs weighing less than 25kg/55lbs – 450mg per day
  • Dogs weighing 25-34kg/55-75lbs – 750mg per day
  • Dogs weighing more than 34kg/75lbs – 1000mg per day

How to administer green lipped mussels

While it is often suggested the most effective way is to sprinkle it onto your dog’s food, the study I mentioned above suggests dogs showed significant improvement whether it was given that way, in a treat or as an ingredient in dog food. The fact it is helpful in various forms, increases the likelihood you will find something your dog will accept.

How long until I see results?

Natural supplements tend to take longer to have an affect than medications, so it may take several weeks for you to notice a difference.

Side effects

There don’t seem to be any concerns about side effects, although there is a very slight chance your dog could be allergic to shellfish. If you see any symptoms such as your dog scratching, upset stomach, difficulty breathing or lack of interest in food (possibly due to nausea), please call your vet immediately.

Are all green lipped mussels supplements created equal?

Not all supplements are created equal, and green lipped mussels are no exception. It’s important to understand the manufacturing process in order to choose the best brand. Heat destroys the nutrients naturally found in the mussels, so if they are steamed open you want to stay away from that brand. Look for cold extracted instead.

There are also many supplements that contain GLM but it’s not always easy to determine how much it actually contains, or the manufacturing process.

You may want to start by checking with your local health food store, and speaking with a knowledgeable salesperson.

Are GLM better than anti-inflammatories?

It depends what “better” means to you. When the “right” medication is found and dosage determined, then they absolutely do help with the pain associated with arthritis. By the same token there are often side effects that come with these drugs, and may be experienced by your dog.

More and more pet parents are looking for natural alternatives, and GLM are definitely worth looking into.

Keep in mind not every drug or supplement will be effective for every dog.

Are other supplements for mobility needed?

There is no definitive “yay” or “nay” answer to that question, but more a matter of the severity of the pain your dog experiences, and what will work best for him or her.

You may find you are able to reduce the amount of pain meds, or eliminate them completely, once you’ve started GLM

Some dog parents find the greatest effect when taken with glucosamine/chondroitin, while others add fish oil as well.

What the studies show about efficacy

Evaluating Complementary Therapies for Canine Osteoarthritis Part I: Green-lipped Mussel

Effect of a diet enriched with green-lipped mussel on pain behavior and functioning in dogs with clinical osteoarthritis

Improvement of Arthritic Signs in Dogs Fed Green-Lipped Mussel (Perna canaliculus)

Always check with your vet

I always advise checking with your vet before making any changes to your dog’s diet, and that includes the addition of supplements. In my case because Red had chronic pancreatitis, it was critical I kept an eye on the amount of oils in her diet and that definitely included fish oil.

If your vet isn’t as familiar with alternative therapies as you would like, bring an information sheet with you. If he still isn’t able to offer you the advice you seek, a visit to a holistic vet may help. If you do end up with a second vet, communication between all parties is key for the safety of your dog.


Do you give your senior dog green lipped mussels? What condition are you treating? Do you see any positive results? Sharing helps others so please leave a comment below.


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I would like to invite you to join Senior Dog Care Club, my Facebook group for senior dog parents. There you will find lots of helpful tips and advice, a place to ask questions and share experiences. I look forward to welcoming you.


*There are affiliate links in this post, which means if you purchase anything I make a few pennies…literally. That money helps me help homeless animals through donations and fostering, as well as keeping this blog running.




  1. Marjorie at Dash Kitten Crew

    We use a local company here in New Zealand who make Pet Mussel with a dosage for cats. We believe that senior cat Harvey does indeed benefit from the supplement.

    We use smaller amounts I think than for a dog but I would endorse green lipped mussel 100% and I am so glad to see you review this. People need to give this stuff a try!

    1. Hindy Pearson (Post author)

      Being from New Zealand yourself Marjorie, I’m glad to hear you’re using it and finding it helpful. It’s good to hear it works for cats as well.

  2. Ruth Epstein

    I have been doing a lot of reading lately about them and doing some research so your post came at perfect timing as it answered some questions for me , thanks so much

    1. Hindy Pearson (Post author)

      Glad to hear that Ruth. I’ll be interested to hear if you think it could benefit Layla.

  3. Tenacious Little Terrier

    I’ve tried plain mussels but Mr. N refuses to eat them. Now he’s on a combination chew that has mussels in it which he much prefers. He’s not showing any signs of pain but prevention is good!

    1. Hindy Pearson (Post author)

      Glad you found a way for Mr N to get his mussels.

  4. Dorothy "FiveSibesMom"

    I have heard really good things about this. With four senior dogs now and one who is 13 and has arthritis, I will look into this a little more to see if it is something I should add to her diet. She (all 4) are on Omega-3 oil, among other supplements. I do prefer the natural way of treating for as long as I can, especially since she has IBS issues and many of the pain meds trigger it. I’m Pinning this to my “Bark About” board for sharing as well! Thanks, Hindy!

    1. Hindy Pearson (Post author)

      My vet first mentioned this to me a few years ago, and I was pleasantly surprised he was recommending something natural as opposed to always prescribing medication. Let me know if you find it something useful to add to to your 13 year old’s diet. Thanks for pinning!!

  5. Holly

    I’ve added GLM supplements to my cats’ raw diet. I have several elderly cats and I do think it helps.

    1. Hindy Pearson (Post author)

      Good to know!

  6. Cathy Armato

    Thank you for this thorough summary of the benefits of GLM, Hindy. I’ve been thinking about trying them for Icy, she seems to be slowing down a bit (she’ll be 9 in the Fall).
    Love & Biscuits,
    Dogs Luv Us and We Luv Them

    1. Hindy Pearson (Post author)

      Hi Cathy, if you do decide to try them with Icy let me know if they help!!

  7. Rachel

    So interesting! This is a supplement I have never heard of, I’ll be sure to check it out!

    1. Hindy Pearson (Post author)

      My vet mentioned it to me quite some time ago, lots of great results. Naturally not every dog will respond the same way, but I like there are options.


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