Evidence map›Paper›PMID 40247111›Full record

Trial reportEuropean journal of clinical nutrition2025

Red palm olein supplementation as a potential preventive solution for xerophthalmia among vitamin A-deficient primary schoolchildren: a cluster randomized controlled trial.

Pei Yee Tan, Chuan Chun Lim, Katherine Boon Hwei Seng, Radhika Loganathan, Yvonne Ai-Lian Lim, Kim-Tiu Teng, Syahirah Nadiah Mohd Johari, Kanga Rani Selvaduray, Norlina Ramli

Registry-linked trialAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European 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 NCT03256123 (The Effect of Biscuits Containing Red Palm Oil on School Children With Vitamin A Deficiency in West and East Malaysia), which is not on this 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.

NCT03256123 nacompletednot on this map

The Effect of Biscuits Containing Red Palm Oil on School Children With Vitamin A Deficiency in West and East Malaysia

TypeinterventionalSponsorMalaysia Palm Oil BoardRan2017 to 2019Enrolled651ConditionsVitamin A Deficiency in ChildrenArmsred palm shortening group, palm shortening group
3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Trial
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

9 authors.

Pei Yee TanProduct Development and Advisory Services Division, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia.ORCID http://orcid.org/0000-0002-9894-0548
Chuan Chun LimUniversiti Malaya Eye Research Centre, Department of Ophthalmology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
Katherine Boon Hwei SengUniversiti Malaya Eye Research Centre, Department of Ophthalmology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
Radhika LoganathanProduct Development and Advisory Services Division, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia. radhika@mpob.gov.my.ORCID http://orcid.org/0000-0001-6352-9241
Yvonne Ai-Lian LimDepartment of Parasitology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
Kim-Tiu TengProduct Development and Advisory Services Division, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia.ORCID http://orcid.org/0000-0003-1383-8913
Syahirah Nadiah Mohd JohariDepartment of Parasitology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
Kanga Rani SelvadurayProduct Development and Advisory Services Division, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia.
Norlina RamliUniversiti Malaya Eye Research Centre, Department of Ophthalmology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia. norlina@ummc.edu.my.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to investigate the effectiveness of carotenoid-rich red palm olein (RPO) in treating or preventing xerophthalmia among Malaysian rural primary schoolchildren with confirmed vitamin A deficiency (VAD) (plasma retinol <0.70 µmol/L) and marginal vitamin A status (plasma retinol 0.70 to <1.05 µmol/L).

methodsA double-blinded, cluster randomized controlled trial was conducted on 504 schoolchildren aged 8-12 years from ten rural primary schools in Malaysia. The selected schools were randomly assigned into two groups: the experimental group (n = 249) received RPO-enriched biscuits (326.3 µg retinol equivalents/day), while the control group (n = 255) received palm olein (PO)-enriched biscuits for 6 months (4 days/week). Chi-square test and mixed effects logistic regression model were applied to examine the effects of supplementation on the resolution or prevention of xerophthalmia.

resultsAfter 6-month supplementation, a higher resolution rate of xerophthalmia (31.2%) was observed in the experimental group compared to the control group (24.1%), but this difference lacked statistical significance (p = 0.11). Nevertheless, the experimental group showed a significantly higher prevention rate of xerophthalmia (81.8%) or conjunctival xerosis (82.5%) than the control group (56.5% or 57.6%, respectively) after 6-month supplementation (p < 0.001). Moreover, schoolchildren in the experimental group were 4.8 times less likely to develop xerophthalmia compared to the control group.

conclusionA 6-month supplementation of RPO-enriched biscuits demonstrated potential benefits in preventing xerophthalmia or conjunctival xerosis among vitamin A-deficient primary schoolchildren in rural areas of Malaysia. Therefore, RPO may offer a promising preventive solution to xerophthalmia for populations at a high risk of developing VAD. CLINICAL

trial registrationClinicalTrials.gov (NCT03256123).

Indexed as

Dietary SupplementsOleaVitamin A DeficiencyXerophthalmiaCarotenoidsChildDouble-Blind MethodFemaleHumansMalaysiaMalePalm OilRural PopulationVitamin ACarotenoidsPalm OilVitamin A

Identifiers

PMID40247111

What Socratic holds

Textmetadata
Read underepoch 390

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 Socratic graph.