Can dogs or cats eat seaweed?

Yup, kitties can eat certain types of seaweed in moderation, as an occasional treat. Seaweed is rich in essential nutrients such as iodine, potassium, calcium, iron, vitamins A and C, and omega-3 fatty Acids. These nutrients are important for maintaining good overall health in cats.

Just keep in mind that not all types of seaweed are safe for cats to eat. Hijiki, for example, contains arsenic, which could be harmful to your cat if they eat it regularly or in large amounts. You should also avoid giving them seaweed that contains high levels of salt, which could lead to dehydration or illness. (In general, you should only give them plain seaweed without any seasonings or additives; soy sauce, for instance, could make your cat ill due to its high salt content.) And don't attempt to introduce your cat to sushi, as raw fish can contain illness-causing bacteria.

Feeding your cat too much seaweed can also cause iodine toxicity, which can lead to hyperthyroidism (swelling in the gland under the jaw or neck area). So again, moderation is key.

As always, before introducing a new food item into your pet's diet, consult your veterinarian first! If your cat eats seaweed (or any food) and shows signs of illness such as lethargy, diarrhoea, or vomiting, contact your veterinarian immediately. If your pet requires veterinary care due to something they ate, cat insurance can help cover the cost of treatment.