Evidence map›Paper›PMID 41904536›Full record

ArticleBMC nutrition2026

The impact of Ka Ora, Ka Ako, New Zealand's free, healthy school lunch program on children's health and wellbeing.

Renee Railton, Rachael Glassey, Steven Turnbull, David Tipene-Leach, Boyd Swinburn

Abstract read
In one paragraph

Article in BMC nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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.

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

1 citing paper in PubMed.

  1. Article
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.

Renee RailtonTe Kura i Awarua Rangahau Māori Research Centre, Eastern Institute of Technology, Napier, Hawke's Bay, New Zealand.
Rachael GlasseyTe Kura i Awarua Rangahau Māori Research Centre, Eastern Institute of Technology, Napier, Hawke's Bay, New Zealand.
Steven TurnbullSynergia Limited, Auckland, New Zealand.
David Tipene-LeachTe Kura i Awarua Rangahau Māori Research Centre, Eastern Institute of Technology, Napier, Hawke's Bay, New Zealand.
Boyd SwinburnTe Kura i Awarua Rangahau Māori Research Centre, Eastern Institute of Technology, Napier, Hawke's Bay, New Zealand. boyd.swinburn@auckland.ac.nz.ORCID http://orcid.org/0000-0002-2131-045X

Funding

A Better Start - National Science Challenge 3719490 ABST2017
6 · The paper itself

Abstract

backgroundSince 2020, New Zealand’s free, healthy lunch program, Ka Ora, Ka Ako, has been implemented in qualifying schools from high-deprivation areas. The aim of this study was to measure its impact on student health and wellbeing.

methodsA quasi-experimental study compared health and wellbeing outcomes for Year 5 and Year 9 students in Hawke’s Bay in participating versus non-participating schools using surveys of eating behaviours, food insecurity, wellbeing (WHO-5 questionnaire), and body size (anthropometry) in 2020 and 2023.

resultsCompared to students from 14 non-Ka Ora, Ka Ako schools (n = 741/690), students from 13 Ka Ora, Ka Ako schools (n = 447/399 2020/2023) had: generally lower vegetable and fruit consumption at baseline, but non-significant increases in any vegetables (p = 0.149) and any fruit (p = 0.09) over time; higher unhealthy food consumption at baseline which significantly improved over time (p = 0.04); higher food insecurity with no significant change over time; no difference at baseline or change in quality of life scores; substantially higher overweight/obesity prevalence at baseline (66.7% versus 38.0%), and no changes over time (62.0% versus 37.4% at follow up, p = 0.157).

conclusionsKa Ora, Ka Ako has resulted in improvements in eating patterns, but longer duration is needed to determine the impact on overweight/obesity.

Indexed as

ChildrenFood securityFree school lunchesHealthNew ZealandNutritionWell-being

Identifiers

PMID41904536
PMCPMC13162501

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.