Evidence map›Paper›PMID 33803700›Full record

ArticleBiomolecules2021

Iron Status of Vegans, Vegetarians and Pescatarians in Norway.

Sigrun Henjum, Synne Groufh-Jacobsen, Tonje Holte Stea, Live Edvardsen Tonheim, Kari Almendingen

Open access · goldAbstract read
In one paragraph

Article in Biomolecules, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 10% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 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

5 authors at 2 institutions in 1 country.

Sigrun HenjumDepartment of Nursing and Health Promotion, Faculty of Health Science, Oslo Metropolitan University, Kunnskapsveien 55, 2007 Kjeller, Norway.
Synne Groufh-JacobsenDepartment of Nutrition and Public Health, Faculty of Health and Sport Sciences, University of Agder, Universitetsveien 25, 4630 Kristiansand, Norway.
Tonje Holte SteaDepartment of Health and Nursing Sciences, Faculty of Health and Sport Sciences, University of Agder, Universitetsveien 25, 4630 Kristiansand, Norway.
Live Edvardsen TonheimDepartment of Nursing and Health Promotion, Faculty of Health Science, Oslo Metropolitan University, Kunnskapsveien 55, 2007 Kjeller, Norway.
Kari AlmendingenDepartment of Nursing and Health Promotion, Faculty of Health Science, Oslo Metropolitan University, Kunnskapsveien 55, 2007 Kjeller, Norway.ORCID 0000-0002-2485-2334
OsloMet – Oslo Metropolitan University · NOUniversity of Agder · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although plant-based diets provide well-established physical and environmental health benefits, omitting meat or meat products has also been associated with a risk of being deficient in specific nutrients, such as iron. As data on the iron status among Norwegian vegans, vegetarians and pescatarians are lacking, the present study aimed to assess iron status in these groups of healthy adults. Blood markers for iron status were measured in 191 participants (18-60 years old) comprising 106 vegans, 54 vegetarians and 31 pescatarians: serum-ferritin (S-Fe), serum-iron (S-Iron) and serum-total iron binding capacity (S-TIBC). Serum-transferrin-saturation (S-TSAT) was estimated (S-Iron/S-TIBC × 100). The median concentration of blood markers for iron status were within the normal range with no difference between the different dietary practices. In total, 9% reported iron supplement use the last 24 h. S-Fe concentrations below reference (<15 μg/L) were found in 8% of the participating women, of which one participant reported iron supplement use. In multiple regression analysis, duration of adherence to dietary practices and the female gender were found to be the strongest predictors for decreased S-Fe concentration. In conclusion, although the participants were eating a plant-based diet, the majority had sufficient iron status. Female vegans and vegetarians of reproductive age are at risk of low iron status and should have their iron status monitored.

Indexed as

AdolescentAdultFemaleFerritinsHumansIronMicronutrientsMiddle AgedNorwayRegression AnalysisVegetariansYoung AdultFerritinsIronMicronutrientsferritinironiron statusmicronutrientspescatariansplant-based diettransferrin saturationvegansvegetarians

Identifiers

PMID33803700
PMCPMC8003004
OpenAlexW3136633086

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.