A person with hyperthyroidism should avoid eating excessive amounts of iodine-rich foods, such as: iodized salt. fish and shellfish. seaweed or kelp.

Is seaweed good for thyroid?

Seaweed has a high concentration of iodine, an essential nutrient for thyroid function. "Iodine is the precursor for the production of thyroid hormone," Dr. Dodell explains. Seaweed, packaged as nori, wakame, and dulse, can be used in sushi, soups, and salads.

Can seaweed cause hypothyroidism?

Kelp is a type of seaweed known for its rich iodine content. In some individuals, the high iodine load can result in thyroid dysfunction. Hypothyroidism or hyperthyroidism can be either subclinical or overt, transient or sometimes persistent.