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dc.contributor.authorAakre, Inger
dc.contributor.authorSolli, Dina Doblaug
dc.contributor.authorMarkhus, Maria Wik
dc.contributor.authorMæhre, Hanne K
dc.contributor.authorDahl, Lisbeth
dc.contributor.authorHenjum, Sigrun
dc.contributor.authorAlexander, Jan
dc.contributor.authorKorneliussen, Patrick-Andre
dc.contributor.authorMadsen, Lise
dc.contributor.authorKjellevold, Marian
dc.description.abstractBackground: Seaweeds and kelps, also known as macroalgae, have long been common in the East-Asian diet. During recent years, macroalgae have entered the global food market, and a variety of macroalgae products are now available for consumers. Some macroalgae species are known to be particularly rich in iodine, but little data regarding the iodine content of macroalgae-containing foods exists. Objective: The aim of this research study was to analyse the iodine content in a large variety of commercially available macroalgae-containing foods and supplements and to evaluate whether such products are sources of adequate dietary iodine. Design: Ninety-six different products were collected after surveying the Norwegian market for commercially available macroalgae products, collected from three categories: 1) wholefood macroalgae products (n = 43), 2) macroalgae-containing foods (n = 39), and 3) dietary supplements containing macroalgae (n = 14). All products were analysed for iodine content by inductively coupled plasma-mass spectrometry (ICP-MS). Results: The iodine content in one portion of wholefood macroalgae products ranged from 128 to 62,400 μg. In macroalgae-containing foods, the iodine content ranged from 30 to 25,300 μg per portion, and in supplements it ranged from 5 to 5,600 μg per daily dose. The species with the highest analysed iodine content were oarweed, sugarkelp and kombu, with mean iodine levels of 7,800, 4,469 and 2,276 μg/g, respectively. For 54 products, the intake of one portion or dose would exceed the tolerable upper intake level (UL) for iodine. Discussion and conclusion: The iodine content in the included products was variable and for most products high, exceeding the tolerable upper intake level (UL) if consumed as a serving or portion size. The labelling of macroalgae species included, and declaration of iodine content, were inadequate or inaccurate for several products. As macroalgae-containing products are unreliable iodine sources, inclusion of such products in the diet may pose a risk of consuming excessive amounts of iodine.en_US
dc.publisherSwedish Nutrition Foundationen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectRecommended intakeen_US
dc.subjectRecommended intakeen_US
dc.subjectTolerabelt øvre inntaksnivåen_US
dc.subjectTolerable upper intake levelen_US
dc.titleCommercially available kelp and seaweed products – valuable iodine source or risk of excess intake?en_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holderCopyright 2021 Inger Aakre et al.en_US
dc.source.journalFood & Nutrition Researchen_US
dc.identifier.citationFood & Nutrition Research. 2021, 65, 7584.en_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal