Cited by 203Garlic and Onion StudiesLipoproteins and Cardiovascular HealthNatural Products and Biological Research

Effect of garlic on serum lipids: an updated meta-analysis

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Ried, Karin, Toben, Catherine, Fakler, Peter·2013·Nutrition Reviews

Abstract

Background: Epidemiologic studies suggest that garlic may have beneficial effects on risk factors associated with cardiovascular disease (CVD).However, these findings are not unambiguously supported by randomized placebo-controlled clinical trials.Objective: We sought to investigate the effects of a chemically well-characterized garlic preparation on biomarkers for inflammation, endothelial function, and lipid metabolism in subjects with risk factors for CVD.Design: This was a double-blind, randomized, placebo-controlled trial in 90 overweight [body mass index (in kg/m 2 ) 24.5] subjects aged 40 -75 y who smoked 10 cigarettes/d.The subjects were randomly assigned to 3 parallel treatment groups: garlic powder (2.1 g/d), atorvastatin (40 mg/d), or placebo.Duplicate measurements were performed at baseline and after 1 and 3 mo of treatment.Treatments were compared with analysis of covariance with baseline as the covariate, and differences between the treatments were reported as mean percentage difference and corresponding 97.5% CI.Results: None of the variables showed significant differences between the garlic-treated and the placebo groups.In contrast, compared with the placebo group, atorvastatin treatment resulted in significantly lower plasma concentrations of C-reactive protein (20.2%; 1.7%, 35.3%), total cholesterol (37.2%; 33.1%, 41.1%), LDL cholesterol (52.7%; 47.9%, 57.1%), triacylglycerols (31.9%; 20.8%, 41.5%), and tumor necrosis factor ␣ (TNF-␣; 41.9%; 19.0%, 58.3%) and increased the ratio of ex vivo whole blood lipopolysaccharidestimulated to nonstimulated TNF-␣ concentrations (109.7%;37.9%, 218.9%). Conclusion:We conclude that a chemically well-characterized garlic preparation has no significant effect on inflammatory biomarkers, endothelial function, or lipid profile in normolipidemic subjects with risk factors for CVD.

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Authors
Ried, K., Toben, C., & Fakler, P.
Affiliations
  • National Institute of Integrative Medicine (AU)
  • The University of Adelaide (AU)
Venue
Nutrition Reviews
Published
2013-03-07
Volume
71
Issue
5
Pages
282-299
ISSN
0029-6643 (ISSN-L)
OpenAlex
W2136157827
Cited by
203
References
89
Citations by year
2026: 8 · 2025: 15 · 2024: 12 · 2023: 16 · 2022: 17 · 2021: 14 · 2020: 16 · 2019: 14 · 2018: 18 · 2017: 19 · 2016: 18 · 2015: 21 · 2014: 14
FWCI
1.89
Type
journal article
Language
en
Open access
Locations
  • Nutrition Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • Phaidra (Universität Wien) (submittedVersion, cc-by-nc-nd)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
Funders
  • Primary Health Care Research, Evaluation and Development
  • Australian Government
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Garlic and Onion Studies
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Surgery › Natural Products and Biological Research
Keywords
garlic, serum lipids, hypercholesterolemia, total cholesterol, LDL cholesterol, HDL cholesterol, triglycerides, cholesterol-lowering drugs, coronary heart disease risk, dietary intervention
MeSH terms
Anticholesteremic Agents, Cholesterol, Garlic, Humans, Hypercholesterolemia, Phytotherapy, Plant Extracts, Treatment Outcome

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