Homemade seaweed dog treats and ideas for fussy eaters
Last updated October 17, 2026
The simplest homemade seaweed treat is a baked oat and pumpkin biscuit with one crumbled sheet of plain, unsalted nori in the dough. Nori is low in iodine, so a whole sheet spread across a batch adds very little to each biscuit.
Kelp is the seaweed to keep out of the oven. It carries far more iodine, and a teaspoon stirred into a batch is easy to overdo. If your dog already gets a seaweed supplement, mix the day's amount from the pack into a no-bake portion instead of baking it into a tray of biscuits. Either way, treats should stay under a tenth of your dog's daily calories.
Use nori for baking, not kelp
"Seaweed" in a recipe can mean anything from a sushi sheet to a jar of kelp powder, and the difference in iodine is huge. Nori runs from 20 to 200 micrograms of iodine per gram. Kelp, kombu and other brown seaweeds run from 2,500 to 10,000 (Smyth, European Thyroid Journal, 2021). Gram for gram, that's at least 12 times more, and often hundreds of times.
Put that into a batch of 30 biscuits. One nori sheet weighs about 2.5 g, so each biscuit carries roughly 2 to 17 micrograms. Swap in a single gram of kelp powder and each biscuit carries about 83 to 333 micrograms. Those per-biscuit figures are our own arithmetic from the published ranges. Kelp powder is easy to measure by the teaspoon, and a level teaspoon weighs more than a gram.
A dog's thyroid needs iodine, but too much can disrupt it, just as too little can. For a sense of scale, the EU's recommended ceiling for a complete dog food is 4 mg of iodine per kilogram of food (Regulation (EU) 2015/861), and one gram of kelp can hold as much as 0.6 to 2.5 kg of that food. We cover the types in more detail in which seaweeds are safe for dogs, and why iodine matters.
Pumpkin, oat and nori biscuits
Makes about 30 small biscuits.
- 1 cup (about 104 g) oat flour, or rolled oats blitzed fine
- 1/2 cup (about 120 g) plain canned pumpkin puree, not pie filling
- 1 egg
- 1 sheet plain, unsalted nori, crumbled or snipped into tiny pieces
- A splash of water if the dough is dry
Heat the oven to 350 °F (175 °C) and line a tray. Mix everything into a firm dough, roll it about 1/4 inch (6 mm) thick and cut small shapes, or roll teaspoon-sized balls and press them flat. Bake for 20 to 25 minutes, until firm and dry at the edges, then leave them to cool on the tray.
Adding up USDA food data for the oat flour, pumpkin and egg, the whole batch comes to about 530 calories, so each biscuit is roughly 18 (our arithmetic; the nori adds almost nothing). Pie filling is sweetened and spiced, which is why the can matters. Plain pumpkin lists one ingredient.
Keep them in an airtight tin for two or three days, in the fridge for up to a week, or freeze half the batch.
Chicken and nori strips
Slice a skinless chicken breast into thin strips, about 1/8 inch (3 mm), and press crumbled nori onto one side while the meat is still damp.
Heat the chicken before you dry it. The USDA notes that most dehydrator instructions leave this step out, and advises heating poultry to 165 °F (74 °C) first, because a dehydrator alone may never get the meat hot enough to kill bacteria. Bake the strips until they reach that temperature on a meat thermometer, then dry them at 130 to 140 °F (54 to 60 °C) until they snap or bend without any moisture showing. Wash your hands and boards as you would for any raw chicken.
Drying takes out water, not calories. Raw chicken breast is about 120 calories per 100 g, so weigh the meat before you start and divide by the number of strips to know what each one carries.
No-bake ideas with Caniclean
Some dogs eat seaweed powder straight off their dinner. One customer wrote in a verified review on January 16, 2024, "my dog has no hesitation in eating it! I just sprinkle it over her normal food." For the dogs that pick around it, a small portion of something they love works better than a biscuit, because one portion carries exactly one day's amount.
Caniclean is our seaweed powder, and it helps reduce plaque and new tartar. Use the daily amount printed on the pack for your dog's weight, and put it all in one portion. Baked into a tray of 30 biscuits, it would be split 30 ways and you'd never know how much your dog had that day.
Yogurt cup
A spoonful or two of plain, unsweetened yogurt, a few blueberries or slices of banana, and the day's amount stirred through. Read the yogurt label for xylitol, and skip the fruit-flavored pots.
Pumpkin cubes
Spoon plain pumpkin puree into a silicone mold, top each cube with one day's amount and freeze. One cube a day, straight from the freezer on a hot afternoon or thawed for ten minutes.
Broth cubes
Freeze broth in a paw or bone mold and add the day's amount to one cube. Human stock, bouillon and most supermarket broths contain onion or garlic and a lot of salt, so use a broth made for pets with a short ingredient list, or simmer your own from meat, bones and water with nothing else added.
Ingredients to keep out of seaweed treats
- Xylitol turns up in some peanut and nut butters. The FDA warns it can drop a dog's blood sugar within 10 to 60 minutes, so check every jar's label, or leave nut butter out.
- Onion and garlic, including the powders in stock cubes and seasoned snacks, damage red blood cells. Signs often show days later (Merck Veterinary Manual).
- Grapes, raisins and dried currants are linked to kidney failure in dogs, and no safe amount has been set.
- Chocolate, cocoa and macadamia nuts are toxic to dogs.
- Seasoned or roasted seaweed snack sheets add salt and oil, and some flavors carry garlic.
- Cheese and coconut oil add a lot of fat. If your dog has ever had pancreatitis, skip rich treats and ask your vet, because these dogs usually need a low-fat diet.
How many treats a day
AAHA and WSAVA advise keeping treats to no more than 10% of a dog's daily calories, so the rest of the diet stays complete (Príncipe and others, Veterinary Sciences, 2025). Your dog's food label or your vet can tell you the daily figure.
| Dog's daily calories | Treat allowance (10%) | Pumpkin and nori biscuits, about 18 each |
|---|---|---|
| 300 | 30 | 1 to 2 |
| 500 | 50 | 2 to 3 |
| 1,000 | 100 | 5 |
Count everything else that day too. Training rewards and the yogurt cup come out of the same 10%.
What seaweed treats won't do for teeth
A homemade biscuit with a little nori won't clean your dog's teeth. In a 90-day trial of the brown seaweed Ascophyllum nodosum for dental plaque, dogs got a set amount per kilogram of body weight every day, starting straight after a professional cleaning (Gawor and others, Frontiers in Veterinary Science, 2018). That's a measured daily product, not a handful of treats, and nori isn't the seaweed those trials tested.
Daily brushing is still the most effective home care (AAHA 2019 and WSAVA 2026 dental guidelines). Our guide to getting plaque off your dog's teeth sets out the options. Hardened tartar, red or bleeding gums, a loose tooth or a dog that has gone off its food need a vet, and our overview of dental disease in dogs shows which problems home care can't reach.
Ask your vet before adding any seaweed if your dog has a thyroid or kidney condition, takes thyroid medication, or is pregnant or nursing.
Questions owners ask
Can I use the nori from a sushi kit?
Yes, if the pack says nori and nothing else. Seasoned, roasted snack sheets are a different product, so leave those out.
Can puppies have these treats?
The biscuit ingredients are ordinary dog-safe foods, but keep pieces tiny, because a growing puppy needs its calories from a complete puppy food. For any seaweed supplement, follow the minimum age on the pack and ask your vet first.
How long do homemade seaweed treats keep?
Baked biscuits keep two or three days in an airtight tin and about a week in the fridge. Frozen cubes and biscuits keep for a month or two. Throw out anything that smells sour or shows mold.
My dog suddenly won't eat. Is it the seaweed?
A dog that turns down a new topping may simply be wary of a new smell, and the small portions above can help. A dog that stops eating its normal food, or chews on one side, needs a vet check, because that can be a sign of a sore mouth.
References
- Smyth PPA. Iodine, seaweed, and the thyroid. European Thyroid Journal. 2021;10(2):101-108. doi:10.1159/000512971
- Commission Implementing Regulation (EU) 2015/861 on iodine compounds as feed additives (recommended maximum total iodine in complete feed for dogs, 4 mg/kg).
- US Food and Drug Administration. Paws off xylitol, it's dangerous for dogs. Consumer update, current as of December 2025.
- Hayes C (ASPCA Animal Poison Control Center). Allium spp toxicosis; grape, raisin and tamarind toxicosis in dogs; chocolate toxicosis; macadamia nut toxicosis in dogs. Merck Veterinary Manual, reviewed 2024 to 2026.
- Steiner JM. Pancreatitis in dogs and cats. Merck Veterinary Manual, reviewed September 2025.
- US Department of Agriculture, Food Safety and Inspection Service. Jerky and food safety. USDA FoodData Central (SR Legacy) for ingredient calories.
- Príncipe LA, Marchi PH, Amaral AR, et al. Assessment of the nutritional impact of the 10% snack recommendation in pet diets. Veterinary Sciences. 2025;12(3):282. doi:10.3390/vetsci12030282
- Gawor J, Jank M, Jodkowska K, Klim E, Svensson UK. Effects of edible treats containing Ascophyllum nodosum on the oral health of dogs. Frontiers in Veterinary Science. 2018;5:168. doi:10.3389/fvets.2018.00168
- Bellows J, et al. 2019 AAHA dental care guidelines for dogs and cats. Journal of the American Animal Hospital Association. 2019;55(2):49-69.
- Niemiec B, et al. WSAVA global dental guidelines. Journal of Small Animal Practice. 2026. doi:10.1111/jsap.70057