Evidence map›Paper›PMID 29559724›Full record

Trial reportEuropean journal of clinical nutrition2018

Effect of individualised dietary advice for weight loss supplemented with walnuts on blood pressure: the HealthTrack study.

Rhoda N Ndanuko, Linda C Tapsell, Karen E Charlton, Elizabeth P Neale, Marijka J Batterham

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of clinical nutrition, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 5 pooled it
2.3field-weighted citation impact, top 12% 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

11 citing papers in PubMed, 5 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. Effects of Walnut (Juglans regia L.) on Blood Pressure and Endothelial Function in Adults: A Systematic Review and Dose-Response Meta-Analysis.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2026
    Pooled it
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  6. Trial
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  8. Review
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  10. Article
  11. Nuts and Cardiovascular Disease Prevention.Current atherosclerosis reports · 2018
    Review
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 1 institution in 1 country.

Rhoda N NdanukoSchool of Medicine, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia. rnn954@uowmail.edu.au.ORCID http://orcid.org/0000-0002-5727-1712
Linda C TapsellSchool of Medicine, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia.
Karen E CharltonSchool of Medicine, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia.ORCID http://orcid.org/0000-0002-8044-444X
Elizabeth P NealeSchool of Medicine, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia.
Marijka J BatterhamStatistical Consulting Service, School of Mathematics and Applied Statistics, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia.ORCID http://orcid.org/0000-0002-9520-6508
University of Wollongong · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesIn addition to weight-loss, healthy dietary patterns and lower sodium intakes can help reduce blood pressure (BP), but individualised dietary advice may be necessary to achieve these effects. This study aimed to examine the impact of individualised dietary advice on BP in the intensive phase of a weight-loss trial. SUBJECTS/

methodsSecondary analysis of baseline and 3-month data from the HealthTrack randomised controlled trial (n = 211). Participants were randomly assigned to one of three dietary advice groups: general advice (control), individualised advice (intervention group, I), or intervention group supplemented with 30 g walnuts/day (IW). Resting BP and 24-h urine sodium and potassium were measured. Dietary intake was evaluated through diet history interviews.

resultsUnadjusted SBP reduced significantly in all groups (IW and I groups P < 0.001; control group P = 0.002) and DBP in IW and I groups (P < 0.001). Compared to controls, the reductions in BP were 3-4 mmHg greater in the I and IW groups, but this only reached significance for DBP in the I group (-3.3 mmHg; P = 0.041). After controlling for age, sex, medication, weight-loss, physical activity and smoking, only the IW group showed a significant association between SBP reduction and increased urinary potassium (β = -0.101, P = 0.044), decreased sodium:potassium ratio (β = 2.446, P = 0.037) and increased consumption of seed and nut products and dishes (β = -0.108, P = 0.034).

conclusionsDietary patterns with distinctive foods and lower sodium:potassium ratios may enhance the effects of weight-loss on BP. The patterns were best achieved with individualised dietary advice and food supplements.

Indexed as

Diet, HealthyNutsWeight LossAdultBlood PressureBody Mass IndexCreatinineDiet, Sodium-RestrictedExerciseFemaleHumansJuglansLife StyleMaleMiddle AgedObesityCreatininePotassium, DietarySodium, Dietary

Identifiers

PMID29559724
OpenAlexW2791488171

What OpenQuestion holds

Textmetadata
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.