Evidence map›Paper›PMID 32983244›Full record

ReviewNutrition & metabolism2020

A comprehensive insight into the effect of glutamine supplementation on metabolic variables in diabetes mellitus: a systematic review.

Hamed Jafari-Vayghan, Parisa Varshosaz, Fatemeh Hajizadeh-Sharafabad, Hamid Reza Razmi, Mahdi Amirpour, Omid Mohammad Tavakoli-Rouzbehani, Mohammad Alizadeh, Vahid Maleki

Open access · goldAbstract readReview
In one paragraph

Review in Nutrition & metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Serum Amino Acid Variations in Obesity and Gestational Diabetes During Pregnancy.Medical science monitor : international medical journal of experimental and clinical research · 2025
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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

8 authors at 3 institutions in 2 countries.

Hamed Jafari-VayghanStudent Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
Parisa VarshosazDepartments of Chemistry and Biochemistry, and Biology and Biomolecular Sciences Program, Laurentian University, Sudbury, ON Canada.
Fatemeh Hajizadeh-SharafabadDepartment of Clinical Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran.
Hamid Reza RazmiStudent Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
Mahdi AmirpourStudent Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
Omid Mohammad Tavakoli-RouzbehaniStudent Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
Mohammad AlizadehNutrition Research Center, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
Vahid MalekiStudent Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.ORCID 0000-0002-5772-3395
Tabriz University of Medical Sciences · IRArak University of Medical Sciences · IRLaurentian University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diabetes mellitus is one of the most important threats to human health in the twenty-first century. The use of complementary and alternative medicine to prevent, control, and reduce the complications of diabetes mellitus is increasing at present. Glutamine amino acid is known as a functional food. The purpose of this systematic review is to determine the potential role of glutamine supplementation on metabolic variables in diabetes mellitus. For this review, PubMed, SCOPUS, Embase, ProQuest, and Google Scholar databases were searched from inception through April 2020. All clinical trial and animal studies assessing the effects of glutamine on diabetes mellitus were eligible for inclusion. 19 studies of 1482 articles met the inclusion criteria. Of the 19 studies, nine studies reported a significant increase in serum GLP-1 levels. Also, eight studies showed reducing in serum levels of fasting blood sugar, four studies reducing in postprandial blood sugar, and triglyceride after glutamine supplementation. Although glutamine resulted in a significant increase in insulin production in seven studies, the findings on Hb-A1c levels were inconclusive. In addition to, despite of the results was promising for the effects of glutamine on weight changes, oxidative stress, and inflammation, more precise clinical trials are needed to obtain more accurate results. In conclusion, glutamine supplementation could improve glycemic control and levels of incretins (such as GLP-1 and GIP) in diabetes mellitus. However, more studies are needed for future studies.

Indexed as

Diabetes mellitusGLP-1GlutamineGlycemic controlOxidative stressSystematic review

Identifiers

PMID32983244
PMCPMC7517657
OpenAlexW3089177242

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.