Key Takeaways

  • Seaweeds such as nori, wakame, kombu, Irish moss (carrageenan) and dulse are all safe for canine consumption. ✔️
  • Avoid feeding your dog wild seaweed or kelp, as these could have been exposed to dangerous toxins or pollutants.
  • Seaweeds are an incredible source of nutrition for dogs and offer a range of benefits if added to their food in small amounts. ✔️
  • Consult with a vet before making any drastic changes to your pup’s diet. ⚠️

Health Benefits of Seaweed

Seaweed is often called a superfood, and for good reason. The health benefits are countless. High in omega-3 fatty acids, seaweed also contains:

  • iodine;
  • iron;
  • calcium;
  • potassium;
  • vitamins A, C and E.

All these nutrients are vital to your dog’s health. The vitamins also have anti-inflammatory properties that can help with arthritis in dogs, as well as inflammatory bowel disease (IBD). Seaweeds also have antifungal properties and can be beneficial for dogs with skin allergies or yeast infections. But can dogs eat seaweed without limits?

Types of Edible Seaweed

The most common edible seaweeds include:

  • nori;
  • kelp;
  • wakame;
  • kombu;
  • Irish moss;
  • dulse.

All of these sound yummy and can be a fantastic addition to a human diet. However, not all of them can be enjoyed by dogs. Keep reading if you wish to find out more about which ones are safe for your pup!

Dogs Love Seaweed, But Not All Seaweeds Love Dogs

Different types of seaweed have different effects on canines. Let’s briefly discuss the nutritional values and possible toxic components of each of them.

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Nori is a kind of seaweed that is commonly used in human cuisine, particularly sushi. It can be a good option for dogs because it’s low in iodine and doesn’t contain any toxins. Nori can be found at most health food stores, and can be fed to your dog as either a dried or baked sheet.


It’s rich in iodine, so it can help prevent thyroid problems like hypothyroidism and hyperthyroidism. However, some types of kelp, for example hijiki, can contain arsenic and other toxins that can cause vomiting or diarrhea if ingested by your dog.


Wakame seaweed is another kind of seaweed that you can give your dog. It has a high concentration of fucoxanthin, which has been shown to have anti-inflammatory effects in humans and may be helpful for dogs with certain types of arthritis or other inflammatory conditions. This seaweed also contains iron and omega-3 fatty acids that are beneficial for your dog’s overall health.


Kombu is a kind of seaweed that contains vitamins K and B9 (folate), as well as minerals like magnesium, zinc, phosphorus, manganese and calcium. It also helps dogs digest starch and contains high levels of iodine to support their thyroid. But don’t overdo it – too much iodine can throw off your dog’s thyroid balance.

Irish Moss

Irish moss seaweed (carrageenan) is rich in vitamins A, B12 and C. It can be helpful for dogs with digestive issues like nausea or vomiting because it has antiemetic properties that help relieve these symptoms. Your dog may also benefit from seaweed’s antibacterial qualities when they have an infection.


Dulse seaweed is particularly high in potassium. This can be helpful for dogs with heart problems or those who are on a low-sodium diet. It also contains iodine, essential for thyroid function, and magnesium, which is beneficial for muscle and nerve function.

Dogs Love Seaweed, But Not All Seaweeds Love Dogs

Keep in mind to never let your dog chew on wild seaweed that just floats about in the water or at the beach! The sun dries out the seaweeds, causing them to shrink. They then act like a sponge in your dog’s stomach after ingesting, causing blockages that could prove fatal. Besides, beach seaweed could have absorbed critters and pollutants that your dog should better stay away from.

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Keep These Things in Mind Before Giving Your Dog Seaweed

Can dogs eat seaweed? Yes, but you need to make sure that your dog is not allergic to seaweed before feeding them any type of algae. Also, dogs that have thyroid issues or other health problems should not eat seaweed without consulting a specialist first.

How to Add Seaweed to Your Dog’s Diet

By this point, you’re probably no longer asking yourself “Can dogs eat seaweed?” but rather how you can incorporate seaweed into your dog’s diet. There are several ways in which you can safely let your best friend enjoy this sea vegetable.

  • One way to do it is by adding a small amount of dry seaweed to their regular food.
  • Many pharmaceutical companies offer a wide range of seaweed supplements in the form of powder. Ask your vet for the best supplement for your dog.
  • You can also mix it into their water bowl. If your dog is not used to eating seaweed, start by giving them a small amount and gradually increase the quantity over time.

Time to Decide: Can Dogs Eat Seaweed?

Yes, dogs can eat seaweed! They can even benefit from it, but it is crucial to stick to dog-friendly seaweed like nori or wakame, while staying away from wild seaweed and kelp. It is important to talk with your veterinarian about which types of seaweeds may work best for your dog’s specific needs, and only feed your dog seaweeds that have been approved by him or her.

Time to Decide: Can Dogs Eat Seaweed?

Frequently Asked Questions

Can Dogs Eat Dried Seaweed?

Yes, dogs can eat dried seaweed as long as it doesn’t contain harmful additives like onions or garlic. It is important to only feed your dog seaweeds that have been approved by your veterinarian.

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What Happens If a Dog Eats Seaweed?

If you’re wondering what happens if a dog gets into some wild seaweed on the beach, it all depends on the species of seaweed. Some are toxic and may cause serious health problems. If your dog has eaten seaweed and you don’t know what species it was, it’s best to call your veterinarian.

How Much Seaweed Can I Give My Dog?

If you’re using powdered seaweed, then 1/4 teaspoon is a good dose for a large dog and 1/8 teaspoon for a small dog. You can start with smaller doses and gradually increase the amount until you find what works best for your dog. As for dried seaweed, you can give them about a mouthful at a time.

Why Is My Dog Obsessed With Seaweed?

If your dog seems obsessed with seaweed, it’s likely because they enjoy the smell and taste. You can add a small amount of dried or powdered seaweed to their food. However, it’s important not to let your dog chew on wild seaweed or feed them too much at a time.

Does Seaweed Cause Diarrhea in Dogs?

Seaweed can cause diarrhea in dogs if they’re new to them, or if you feed them too much or the wrong type. It’s best to talk with your veterinarian about which types of seaweeds are safe for your dog and how much you can feed them at a time.

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