In Eat This, Not That!, nutrition experts pointed out that the main benefit of algae is that it contains up to 77 percent of the daily allowance of iodine. It plays a key role in thyroid hormones that regulate metabolism.
However, if you overindulge in iodine, you may experience thyroid problems. For example, swelling around the neck or weight gain.
Seaweed also contains essential substances and minerals, including vitamin C, potassium, riboflavin, iodine, folic acid, iron, calcium, thiamine, copper and magnesium.
Seaweed can improve intestinal health because it has fiber and polysaccharides that keep the organ healthy.
Also, eating seaweed reduces the risk of cardiovascular disease, lowers cholesterol levels, and reduces the risk of coronary heart disease.