Evidence map›Paper›PMID 41043876›Full record

Trial reportThe American journal of clinical nutrition2025

Sustainable diets reduce diet-related greenhouse gas emissions and improve diet quality: results from the MyPlanetDiet randomized controlled trial.

Katie P Davies, Eileen R Gibney, Ursula M Leonard, Leona Lindberg, Jayne V Woodside, Mairead E Kiely, Anne P Nugent, Elena Arranz, Marie C Conway, Sinead N McCarthy and 1 more

Registry-linked trialAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in The American journal of clinical nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05253547 (Dietary Intervention Study on Food Based Dietary Guidelines for Sustainable and Healthy Lifestyles), which is not on this map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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.

NCT05253547 nacompletednot on this map

Dietary Intervention Study on Food Based Dietary Guidelines for Sustainable and Healthy Lifestyles

TypeinterventionalSponsorUniversity College DublinRan2022 to 2023Enrolled355ConditionsDietary Habits, Healthy Diet, Healthy Nutrition, Personalized NutritionArmsHealthy climate-friendly dietary guidelines, Healthy dietary guidelines
3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

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  6. Review
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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

11 authors.

Katie P DaviesInstitute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin, Ireland.
Eileen R GibneyInstitute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin, Ireland.
Ursula M LeonardCork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland.
Leona LindbergCentre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom.
Jayne V WoodsideCentre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom; Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, United Kingdom.
Mairead E KielyCork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland.
Anne P NugentInstitute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin, Ireland; Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, United Kingdom.
Elena ArranzCork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland; Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM, CEI UAM+CSIC), Universidad Autónoma de Madrid, Madrid, Spain.
Marie C ConwayDepartment of Agrifood Business and Spatial Analysis, Teagasc Food Research Centre, Ashtown, Dublin, Ireland.
Sinead N McCarthyDepartment of Agrifood Business and Spatial Analysis, Teagasc Food Research Centre, Ashtown, Dublin, Ireland.
Aifric M O'SullivanInstitute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin, Ireland. Electronic address: aifric.osullivan@ucd.ie.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiet-related environmental impacts must be reduced to mitigate climate change. Although many sustainable diets have been proposed, the human and planetary impacts of following such diets have not been tested.

objectiveThe aim of this study was to assess health and environmental outcomes related to following whole-diet sustainable dietary advice.

methodsThe MyPlanetDiet RCT was a 12-week single-blinded, parallel study testing the impacts of a more sustainable diet. Participants were randomly assigned to receive personalized advice based on a sustainable diet (intervention) or based on current healthy eating guidelines (control). Dietary assessments, fasted anthropometry, and fasted serum samples were collected at baseline and end point. The primary outcome was change in diet-related greenhouse gas emissions (GHGE) measured in kilograms carbon dioxide equivalents per day (kgCO

resultsStudy participants (n = 292) decreased diet-related GHGE over time (P < 0.001) with a significant time × group interaction between control (from 6.5 ± 0.2 to 5.7 ± 0.2 kgCO

conclusionsPersonalized sustainable dietary advice led to healthier diets and lower diet-related GHGE with no short-term negative health effects. This trial was registered with clinicaltrials.gov as NCT05253547 (https://clinicaltrials.gov/study/NCT05253547).

Indexed as

DietDiet, HealthyGreenhouse GasesAdultFemaleGreenhouse EffectHumansMaleMiddle AgedSingle-Blind MethodGreenhouse Gasesdietary interventiondiet-related greenhouse gas emissionsfood-based dietary guidelinespersonalized nutritionsustainable diet

Identifiers

PMID41043876
PMCPMC12674021

What OpenQuestion holds

Textmetadata
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Registered trials

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.