The thing about seaweed for dogs is that it is generally safe for dogs to eat. So yes, dogs can eat seaweed. Seaweed is rich in types of vitamins and minerals such as vitamin B12, potassium, iron, and iodine. Seaweed is also rich in fiber so it can help regulate your dogs bowl movements.
Although seaweed can be eaten by dogs, you should not give your dog a large amount. Serving your dog a lot of seaweed at once can cause him or her to choke. Seaweed is also hard for dogs to digest, so it will stay in their digestive system longer. Serving a lot of seaweed can be harmful to their stomachs.
If you want to feed your dog seaweed regularly, or if your dog is ripping up and eating a lot of seaweed when he or she is at the beach, you may want to speak to your vet about it.
Take a look at this dog fetching seaweed!