Trial reportThe Journal of nutrition2010
Lifestyle counseling and supplementation with flaxseed or walnuts influence the management of metabolic syndrome.
Trial report in The Journal of nutrition, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 17 of them syntheses that pooled 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.
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.
Who cites it
61 citing papers in PubMed, 17 syntheses or guidelines pooled it, 159 citations in OpenAlex.
- 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 · 2026Pooled it
- Does Walnut Supplementation Have Favourable Effect Apolipoprotein A, B and Blood Pressure? A Systematic Review, Meta-Analysis and Meta-Evidence of Randomised Clinical Trials.Endocrinology, diabetes & metabolism · 2026Pooled it
- Does Medication Status Impact the Effectiveness of Nuts in Altering Blood Pressure and Lipids? A Systematic Review and Meta-Analysis.Nutrition reviews · 2025Pooled it
- Tree Nut and Peanut Consumption and Risk of Cardiovascular Disease: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.Advances in nutrition (Bethesda, Md.) · 2023Pooled it
- Walnut consumption and health outcomes with public health relevance-a systematic review of cohort studies and randomized controlled trials published from 2017 to present.Nutrition reviews · 2022Pooled it
- The Effect of Walnut Intake on Lipids: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.Nutrients · 2022Pooled it
- Impact of α-Linolenic Acid, the Vegetable ω-3 Fatty Acid, on Cardiovascular Disease and Cognition.Advances in nutrition (Bethesda, Md.) · 2022Pooled it
- Walnut intake, cognitive outcomes and risk factors: a systematic review and meta-analysis.Annals of medicine · 2021Pooled it
- Are fatty nuts a weighty concern? A systematic review and meta-analysis and dose-response meta-regression of prospective cohorts and randomized controlled trials.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2021Pooled it
- The Relationship of Tree Nuts and Peanuts with Adiposity Parameters: A Systematic Review and Network Meta-Analysis.Nutrients · 2021Pooled it
- Intake of Nuts or Nut Products Does Not Lead to Weight Gain, Independent of Dietary Substitution Instructions: A Systematic Review and Meta-Analysis of Randomized Trials.Advances in nutrition (Bethesda, Md.) · 2021Pooled it
- The effect of nuts on markers of glycemic control: a systematic review and meta-analysis of randomized controlled trials.The American journal of clinical nutrition · 2019Pooled it
- Associations between Phytoestrogens, Glucose Homeostasis, and Risk of Diabetes in Women: A Systematic Review and Meta-Analysis.Advances in nutrition (Bethesda, Md.) · 2018Pooled it
- Effects of walnut consumption on blood lipids and other cardiovascular risk factors: an updated meta-analysis and systematic review of controlled trials.The American journal of clinical nutrition · 2018Pooled it
- Effects of tree nuts on blood lipids, apolipoproteins, and blood pressure: systematic review, meta-analysis, and dose-response of 61 controlled intervention trials.The American journal of clinical nutrition · 2015Pooled it
- Nut consumption for the primary prevention of cardiovascular disease.The Cochrane database of systematic reviews · 2015Pooled it
- Effect of tree nuts on metabolic syndrome criteria: a systematic review and meta-analysis of randomised controlled trials.BMJ open · 2014Pooled it
- Trial
- Effects of mixed nut consumption on LDL cholesterol, lipoprotein(a), and other cardiometabolic risk factors in overweight and obese adults.Nutrition, metabolism, and cardiovascular diseases : NMCD · 2023Trial
- Trial
1 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
18 authors at 6 institutions in 2 countries.
Funding
Abstract
A healthy lifestyle may ameliorate metabolic syndrome (MetS); however, it remains unclear if incorporating nuts or seeds into lifestyle counseling (LC) has additional benefit. A 3-arm, randomized, controlled trial was conducted among 283 participants screened for MetS using the updated National Cholesterol Education Program Adult Treatment Panel III criteria for Asian Americans. Participants were assigned to a LC on the AHA guidelines, LC + flaxseed (30 g/d) (LCF), or LC + walnuts (30 g/d) (LCW) group. After the 12-wk intervention, the prevalence of MetS decreased significantly in all groups: -16.9% (LC), -20.2% (LCF), and -16.0% (LCW). The reversion rate of MetS, i.e. those no longer meeting the MetS criteria at 12 wk, was not significantly different among groups (LC group, 21.1%; LCF group, 26.6%; and LCW group, 25.5%). However, the reversion rate of central obesity was higher in the LCF (19.2%; P = 0.008) and LCW (16.0%; P = 0.04) groups than in the LC group (6.3%). Most of the metabolic variables (weight, waist circumference, serum glucose, total cholesterol, LDL cholesterol, apolipoprotein (Apo) B, ApoE, and blood pressure) were significantly reduced from baseline in all 3 groups. However, the severity of MetS, presented as the mean count of MetS components, was significantly reduced in the LCW group compared with the LC group among participants with confirmed MetS at baseline (P = 0.045). Our results suggest that a low-intensity lifestyle education program is effective in MetS management. Flaxseed and walnut supplementation may ameliorate central obesity. Further studies with larger sample sizes and of longer duration are needed to examine the role of these foods in the prevention and management of MetS.
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What OpenQuestion holds
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.