Evidence map›Paper›PMID 33233534›Full record

ArticleNutrients2020

Vegans, Vegetarians and Pescatarians Are at Risk of Iodine Deficiency in Norway.

Synne Groufh-Jacobsen, Sonja Y Hess, Inger Aakre, Elin Lovise Folven Gjengedal, Kristina Blandhoel Pettersen, Sigrun Henjum

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

Synne Groufh-JacobsenDepartment of Nursing and Health Promotion, Faculty of Health Science, Oslo Metropolitan University, 0130 Oslo, Norway.ORCID 0000-0001-8757-5111
Sonja Y HessDepartment of Nutrition, Institute for Global Nutrition, University of California Davis, Davis, CA 95616, USA.ORCID 0000-0002-4661-277X
Inger AakreDepartment of Seafood and Nutrition, Institute of Marine Research, 5817 Bergen, Norway.ORCID 0000-0002-3046-1823
Elin Lovise Folven GjengedalFaculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, 1432 Aas, Norway.ORCID 0000-0002-7771-0153
Kristina Blandhoel PettersenDepartment of Nursing and Health Promotion, Faculty of Health Science, Oslo Metropolitan University, 0130 Oslo, Norway.
Sigrun HenjumDepartment of Nursing and Health Promotion, Faculty of Health Science, Oslo Metropolitan University, 0130 Oslo, Norway.ORCID 0000-0002-0671-2688
OsloMet – Oslo Metropolitan University · NONorwegian Institute of Marine Research · NONorwegian University of Life Sciences · NOUniversity of California, Davis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Low iodine intakes have been documented in different population groups in Norway. We aimed to assess iodine status, dietary intake, supplement and macroalgae use, and iodine knowledge in vegans, vegetarians and pescatarians. In this study, 115 vegans, 55 vegetarians and 35 pescatarians from the Oslo region of Norway, aged 18-60 years, participated. A spot urine sample was collected along with a dietary assessment of iodine intake, supplement and macroalgae use. The median urinary iodine concentration (MUIC) in vegans was 43 µg/L (moderate iodine deficiency), in vegetarians 67 µg/L and in pescatarians 96 µg/L (mild iodine deficiency). In multiple linear regression analysis, use of iodine supplements was one of the strongest predictors of UIC. About half of the participants had median 24-h iodine intakes below estimated average requirement (EAR) of 100 µg/day. Fifty percent had low knowledge score, while 27% had very low knowledge score. Vegans, vegetarians and possibly pescatarians in Norway, are unable to reach the recommended iodine intake merely from food and are dependent on iodine supplements. There is an urgent need for dietary guidance targeting vegans, vegetarians and pescatarians to avoid inadequate iodine intake in non-supplement users, as well as avoiding excess iodine intake in macroalgae users.

Indexed as

AdolescentAdultDietary SupplementsDiet, VeganDiet, VegetarianEatingFemaleHumansIodineMaleMiddle AgedNorwayNutritional StatusSeaweedVegansVegetariansIodineiodine intakeiodine knowledgemicronutrientspescatariansplant-based dietsupplementationurinary iodine concentrationvegansvegetarians

Identifiers

PMID33233534
PMCPMC7699510
OpenAlexW3105975561

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.