Disadvantage

We know that seaweed give lots of advantage and benefit. But you should know, seaweed has its disadvantage. This matter should be taken into account. Despite of its nutritional perks, seaweed may have some drawbacks and drug interactions for certain people.

THYROID PROBLEMS

Seaweed may interfere with your thyroid function, worsening thyroid disease or causing goiter in susceptible individuals. The American Cancer Society says that excessive iodine, a mineral abundant in most seaweeds, can exacerbate hyperthyroidism or hypothyroidism in people who already have these conditions. In addition, for people with impaired thyroid function, large amounts of iodine from seaweed can cause growths on the thyroid called goiters.