{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,5]],"date-time":"2026-11-05T18:14:45Z","timestamp":1793902485548,"version":"4.8.0"},"reference-count":40,"publisher":"Cambridge University Press (CUP)","issue":"1","license":[{"start":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T00:00:00Z","timestamp":1772496000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Br J Nutr"],"published-print":{"date-parts":[[2026,7,14]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Concerns about the environmental impact of animal-source foods have led to a shift towards plant-based alternatives (PBA). While dairy products and seafood are rich in iodine, an essential nutrient for thyroid function and cognitive development, PBA often lack iodine fortification. As the market expands, there is increasing concern that individuals replacing dairy products and seafood with unfortified PBA may be at risk of iodine deficiency. This study assessed changes in the iodine fortification of plant-based milk, yogurt, cheese and seafood alternatives through a cross-sectional survey of UK supermarkets (2020\u20132024). Supermarkets were surveyed online each December, and product nutrition and ingredient data were extracted. Between 2020 and 2024, the number of PBA increased by 55 %, with 466 PBA identified in 2024, including milk (\n                    <jats:italic>n<\/jats:italic>\n                    246), yogurt (\n                    <jats:italic>n<\/jats:italic>\n                    81), cheese (\n                    <jats:italic>n<\/jats:italic>\n                    110) and seafood alternatives (\n                    <jats:italic>n<\/jats:italic>\n                    29). Iodine fortification was inconsistent: in 2024, 48 % of non-organic milk alternatives were fortified, while only 5 % of non-organic yogurt and 4 % of cheese alternatives contained iodine. In comparison, 28 %, 6 % and 0 % of non-organic milk, yogurt and cheese alternatives were fortified with iodine in 2020. No fortified seafood alternatives were identified. Fortified PBA provided 75\u201383 % of the iodine content of cow\u2019s milk, but most remained poor iodine sources. Although iodine fortification has increased, it lags behind that of calcium and vitamin B\n                    <jats:sub>12<\/jats:sub>\n                    (48 %\n                    <jats:italic>v<\/jats:italic>\n                    . 88 % and 71 %, respectively). Given iodine\u2019s critical role in health, clearer public health guidance and improved fortification policies are needed. Increased reliance on PBA may exacerbate iodine insufficiency in the UK without intervention.\n                  <\/jats:p>","DOI":"10.1017\/s0007114526106758","type":"journal-article","created":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T04:59:43Z","timestamp":1772513983000},"page":"16-22","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":4,"title":["Micronutrient fortification of plant-based dairy and seafood alternatives - changes over a five year period"],"prefix":"10.1017","volume":"136","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6531-0243","authenticated-orcid":false,"given":"Katie","family":"Nicol","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne P.","family":"Nugent","sequence":"additional","affiliation":[{"name":"Queen\u2019s University Belfast"},{"name":"University College Dublin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5691-4659","authenticated-orcid":false,"given":"Jayne","family":"Woodside","sequence":"additional","affiliation":[{"name":"Queen\u2019s University Belfast"},{"name":"Queen\u2019s University Belfast"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathryn H.","family":"Hart","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eva-Leanne","family":"Thomas","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joshua M.","family":"Wicking","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roxanne","family":"Smith","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Delicia","family":"Bale","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lily","family":"Soutter","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felicity","family":"Wells","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leonie","family":"Hunt","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Holly","family":"Bacon","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hannah","family":"Tyko","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Darcey G.","family":"Rumble","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5391-9932","authenticated-orcid":false,"given":"Sarah C.","family":"Bath","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00ks66431","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2026,3,3]]},"reference":[{"key":"S0007114526106758_ref11","unstructured":"11. 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Published by Cambridge University Press on behalf of The Nutrition Society","name":"copyright","label":"Copyright","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https:\/\/creativecommons.org\/licenses\/by\/4.0\/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.","name":"license","label":"License","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This content has been made available to all.","name":"free","label":"Free to read"}]}}