Cited by 191Garlic and Onion StudiesChemical synthesis and alkaloidsGenomics, phytochemicals, and oxidative stress

Garlic in health and disease

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Rana, S. V., Pal, R., Vaiphei, K., Sharma, Sanjeev K., Ola, R. P.·2011·Nutrition Research Reviews

Abstract

The present article reviews the historical and popular uses of garlic, its antioxidant, haematological, antimicrobial, hepatoprotective and antineoplastic properties and its potential toxicity (from sulfoxide). Garlic has been suggested to affect several cardiovascular risk factors. It has also been shown that garlic and its organic allyl sulfur components are effective inhibitors of the cancer process. Since garlic and its constituents can suppress carcinogen formation, bioactivation and tumour proliferation, it is imperative that biomarkers be established to identify which individuals might benefit most. Garlic powder, aged garlic and garlic oil have demonstrated antiplatelet and anticoagulant effects by interfering with cyclo-oxygenase-mediated thromboxane synthesis. Garlic has also been found to have synergistic effects against Helicobacter pylori with a proton pump inhibitor. The active compound allicin may affect atherosclerosis not only by acting as an antioxidant, but also by other mechanisms, such as lipoprotein modification and inhibition of LDL uptake and degradation by macrophages. Freshly prepared garlic homogenate protects against isoniazid+rifampicin-induced liver injury in experimental animal models. Several mechanisms are likely to account for this protection.

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Crossref · 10.1017/s0954422410000338

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  • Allicin prevents cell proliferation by targeting tubulin that shapes the mitotic spindle and thus inhibits cell division.

    “Several studies reported the activity of allicin in preventing cell proliferation [81] by targeting tubulin that shapes the mitotic spindle and thus inhibits cell division [82].”
  • Garlic intake at a dose of 500 and 1000 mg/kg/day remarkably decreased auto-antioxidants without changing the lipid peroxidation level, whereas daily intake of 1000 mg/kg resulted in morphological deformities in the liver under light microscopy and ultrastructural levels.

    “While garlic intake at a dose of 500 and 1000 mg/kg/day remarkably decreased the auto-antioxidants without changing the lipid peroxidation level, whereas the daily intake of 1000 mg/kg resulted in morphological deformities in the liver under light microscopy and ultrastructural levels.”
  • Randomized controlled trials observed side effects of garlic such as insomnia, vomiting, heartburn, dizziness, diarrhea, tachycardia, nausea, bloating, flushing, headache, mild orthostatic hypotension, sweating, offensive body odor, and flatulence.

    “To assess the safety of garlic, randomized controlled trials were performed, side effects such as insomnia, vomiting, heartburn, dizziness, diarrhea, tachycardia, nausea, bloating, flushing, headache, mild orthostatic hypotension, sweating, offensive body odor, and flatulence were observed [82].”
  • Oral or intraperitoneal administration of 50 mg/kg garlic to rats did not show any effect on liver and lung tissue, while intake of garlic at 250, 500, and 1000 mg/kg per day led to acute deformities in the rat's liver and lung tissue, suggesting dose-related toxicity.

    “Rana et al. [82] revealed that oral or intraperitoneal administration 50 mg/kg of garlic to rats did not show any effect on liver and lung tissue, while intake garlic at 250, 500, and 1000 mg/kg per day led to acute deformities in the rat’s liver and lung tissue, suggesting the dose-related toxicity.”
  • Garlic powder or allicin at a concentration of 200 mg/mL can cause significant cell damages in the isolated rat liver.

    “Rana et al. [82] revealed that garlic powder or allicin at a concentration of 200 mg/mL can cause significant cell damages in the isolated rat liver.”

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Authors
Rana, S. V., Pal, R., Vaiphei, K., Sharma, S. K., & Ola, R. P.
Affiliations
Post Graduate Institute of Medical Education and Research (IN)
Corresponding author
Rana, S. V.
Venue
Nutrition Research Reviews
Published
2011-05-13
Volume
24
Issue
1
Pages
60-71
ISSN
  • 0954-4224 (ISSN-L)
  • 1475-2700
OpenAlex
W2077491843
Cited by
191
References
131
Citations by year
2026: 11 · 2025: 24 · 2024: 15 · 2023: 26 · 2022: 19 · 2021: 17 · 2020: 22 · 2019: 10 · 2018: 13 · 2017: 8 · 2016: 10 · 2015: 8 · 2014: 5 · 2013: 1 · 2012: 1
FWCI
0.26
Type
journal article
Language
en
Open access
Locations
  • Nutrition Research Reviews (publishedVersion)
  • PubMed (publishedVersion)
Funders
Postgraduate Institute of Medical Education and Research, Chandigarh
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Garlic and Onion Studies
  • Physical Sciences › Chemistry › Organic Chemistry › Chemical synthesis and alkaloids
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics, phytochemicals, and oxidative stress
Keywords
garlic, allicin, antioxidant activity, antimicrobial activity, hepatoprotection, anticancer activity, cardiovascular risk factors, antiplatelet activity, anticoagulant activity, cyclooxygenase, thromboxane synthesis, Helicobacter pylori, atherosclerosis, LDL uptake, biomarkers
MeSH terms
Animals, Anti-Bacterial Agents, Antineoplastic Agents, Phytogenic, Antioxidants, Cardiovascular Diseases, Garlic, Hematologic Agents, Humans, Phytotherapy, Neoplasms, Plant Extracts, Helicobacter Infections, Atherosclerosis, Chemical and Drug Induced Liver Injury

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