For those residing in coastal areas, seaweed was immediate and packed with minerals, iodine, fibre and trace nutrients that are actually hard to find elsewhere. She told the Daily Mail: 'Fibre is the largest component of seaweed's biomass,' says Ms Swiminer. 'There are an estimated 12,000 species of macroalgae, most of which are marine species,' Ms Swiminer explains. Iodine is a mineral that plays a key role in thyroid health and is required for the production of thyroid hormones. 'Many Japanese dishes are wonderful for maximising the benefits of seaweed and minimising unwanted effects,' Ms Swiminer says.

Source: Daily Mail February 13, 2026 15:14 UTC