Evidence map›Paper›PMID 34796136›Full record

ArticleClinical nutrition research2021

Olive Leaf Extract Supplementation Combined with Calorie-Restricted Diet on Reducing Body Weight and Fat Mass in Obese Women: Result of a Randomized Control Trial.

Fatemeh Haidari, Forough Shayesteh, Majid Mohammad-Shahi, Mohammad-Taha Jalali, Kambiz Ahmadi-Angali

Open access · diamondAbstract read
In one paragraph

Article in Clinical nutrition research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

6 citing papers in PubMed, 9 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

5 authors at 1 institution in 1 country.

Fatemeh HaidariDepartment of Nutrition, Faculty of Paramedical Sciences, Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical sciences, Ahvaz 61357-15794, Iran.ORCID https://orcid.org/0000-0001-9104-4639
Forough ShayestehDepartment of Nutrition, Faculty of Paramedical Sciences, Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical sciences, Ahvaz 61357-15794, Iran.ORCID https://orcid.org/0000-0001-9294-7848
Majid Mohammad-ShahiDepartment of Nutrition, Faculty of Paramedical Sciences, Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical sciences, Ahvaz 61357-15794, Iran.ORCID https://orcid.org/0000-0002-4987-8194
Mohammad-Taha JalaliHyperlipidemia Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 5794-61357, Iran.ORCID https://orcid.org/0000-0002-5094-8049
Kambiz Ahmadi-AngaliFaculty of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 5794-61357, Iran.ORCID https://orcid.org/0000-0002-1530-2349
Ahvaz Jundishapur University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present trial aims to evaluate a supplementation of the olive leaf extract (OLE) in adjunct with a weight loss diet on anthropometric indices, glycemic indices, lipid profile, as well as the level of adipokines, and free fatty acid in obese women. We carried out an 8-week randomized, placebo-controlled, double-blind, parallel-group, clinical trial. The participants were randomly stratified according to age and they were assigned to one of the two study groups: Standard weight loss diet (estimated daily energy requirements minus 500 kcal) + OLE supplementation (n = 35) in intervention group or Standard weight loss diet (estimated daily energy requirements minus 500 kcal) + placebo (n = 35) in placebo group. The study groups were homogeneous regarding the baseline age, height, weight, body mass index (BMI), waist circumferences, married status, and physical activity levels (p > 0.05). The results of analysis of covariance presented significant decreases in BMI, fat mass, and body weight in the OLE group compared to those in the placebo group (p < 0.05). At the end of the study, the serum levels of fasting blood sugar, insulin, low-density lipoprotein cholesterol, total cholesterol, leptin, fatty free acid, and homeostasis model assessment-insulin resistance significantly decreased, and serum levels of high-density lipoprotein cholesterol and adiponectin elevated in the intervention group (p < 0.05). Based on results it seems that the addition of OLE to a hypocaloric diet for 8-week compared with a hypocaloric diet alone may be more effective in modifying obesity and metabolic risk factors.

trial registrationIranian Registry of Clinical Trials Identifier: IRCT20190129042552N2.

Indexed as

ObesityOlive leaf extractRandomized controlled trialReducing dietWeight loss

Identifiers

PMID34796136
PMCPMC8575641
OpenAlexW3212527806

What OpenQuestion holds

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Registered trials

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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.