Evidence map›Paper›PMID 31616932›Full record

Trial reportThe Journal of nutrition2020

A Moderate-Fat Diet with One Avocado per Day Increases Plasma Antioxidants and Decreases the Oxidation of Small, Dense LDL in Adults with Overweight and Obesity: A Randomized Controlled Trial.

Li Wang, Ling Tao, Lei Hao, Todd H Stanley, Kuan-Hsun Huang, Joshua D Lambert, Penny M Kris-Etherton

Registry-linked trialOpen access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01235832 (The Effect of One Avocado Per Day on Established and Emerging Cardiovascular Disease), which is not on this map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
7.0field-weighted citation impact, top 4% 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.

NCT01235832 nacompletednot on this map

The Effect of One Avocado Per Day on Established and Emerging Cardiovascular Disease (CVD) Risk Factors

TypeinterventionalSponsorPenn State UniversityRan2010 to 2013Enrolled54ConditionsCardiovascular Disease, HyperlipidemiaArmsAvocado Diet, Lower-Fat Diet, Moderate Fat Diet
3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 59 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Li WangDepartment of Nutritional Sciences, Pennsylvania State University, University Park, PA, USA.
Ling TaoDepartment of Food Science, Pennsylvania State University, University Park, PA, USA.
Lei HaoDepartment of Nutritional Sciences, Pennsylvania State University, University Park, PA, USA.
Todd H StanleyDepartment of Food Science, Pennsylvania State University, University Park, PA, USA.
Kuan-Hsun HuangDepartment of Nutritional Sciences, Pennsylvania State University, University Park, PA, USA.
Joshua D LambertDepartment of Food Science, Pennsylvania State University, University Park, PA, USA.
Penny M Kris-EthertonDepartment of Nutritional Sciences, Pennsylvania State University, University Park, PA, USA.
Pennsylvania State University · US

Funding

Penn State Clinical and Translational Science InstituteUL1TR000127 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI SINOWAY, LAWRENCE I · 2012 to 2015
$17.1M
PENN STATE CLINICAL AND TRANSLATIONAL SCIENCE INSTITUTEUL1RR033184 · NCRR · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI SINOWAY, LAWRENCE I · 2011 to 2011
$4.5M
NCATS NIH HHS UL1 TR000127NCRR NIH HHS UL1 RR033184
6 · The paper itself

Abstract

backgroundAvocados are a nutrient-dense source of MUFAs and are rich in antioxidants. Avocados have an additional LDL cholesterol (LDL-C) lowering effect beyond that observed when their MUFAs are substituted for SFAs, especially on small, dense LDL (sdLDL) particles, which are susceptible to in vivo oxidation and associated with increased risk of cardiovascular disease (CVD).

objectivesWe investigated whether a healthy diet with 1 avocado daily decreased the following secondary outcomes: circulating oxidized LDL (oxLDL) and related oxidative stress markers.

methodsA randomized, crossover, controlled feeding trial was conducted with 45 men and women, aged 21-70 y, with overweight or obesity and elevated LDL-C (25th-90th percentile). Three cholesterol-lowering diets were provided (5 wk each) in random sequences: a lower-fat (LF) diet (24% calories from fat-7% SFAs, 11% MUFAs, 6% PUFAs) and 2 moderate-fat (MF) diets (34% calories from fat-6% SFAs, 17% MUFAs, 9% PUFAs): the avocado (AV) diet included 1 Hass avocado (∼136 g) per day, and the MF diet used high oleic acid oils to match the fatty acid profile of 1 avocado. A general linear mixed model was used to analyze the treatment effects.

resultsCompared with baseline, the AV diet significantly decreased circulating oxLDL (-7.0 U/L, -8.8%, P = 0.0004) and increased plasma lutein concentration (19.6 nmol/L, 68.7%, P < 0.0001), and both changes differed significantly from that after the MF and LF diets (P ≤ 0.05). The change in oxLDL caused by the AV diet was significantly correlated with the changes in the number of sdLDL particles (r = 0.32, P = 0.0002) but not large, buoyant LDL particles.

conclusionsOne avocado a day in a heart-healthy diet decreased oxLDL in adults with overweight and obesity, and the effect was associated with the reduction in sdLDL. This trial was registered at http://www.clinicaltrials.gov as NCT01235832.

Indexed as

PerseaAdultAgedAntioxidantsBiomarkersCross-Over StudiesDietary FatsFemaleHumansInflammation MediatorsLipoproteins, LDLMaleMiddle AgedObesityOverweightOxidation-ReductionAntioxidantsBiomarkersDietary FatsInflammation MediatorsLipoproteins, LDLRNA, MessengerVitaminsantioxidantsavocadoCVDLDL oxidationlipidlipid transfer proteinslipoproteinMUFAsmall dense LDL

Identifiers

PMID31616932
PMCPMC7373821
OpenAlexW2980907962

What OpenQuestion holds

Textmetadata
LicenceCC BY
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 OpenQuestion graph.