What are the key benefits of eating seaweed?

Seaweed's best-known benefit is that it is a rich source of iodine, a nutrient that is missing in almost every other food. Eating enough iodine is an important factor in maintaining a healthy thyroid and overall good health, states Huffington Post.

Brown seaweed is good for digestive health because it contains alginate, a high-fiber nutrient that strengthens the lining of the intestines, slows digestion, and inhibits the release of energy from food. Additionally, research from Kyoto University shows that the brown seaweed lowers blood pressure and reduce the risk of stroke in animals prone to heart disease, reports the Guardian.