Garlic and Reduced Triglyceride Levels

Research synthesisLow evidenceSmall effect5 studies · 2 beneficial · 3 neutral · 0 harmful

Across 5 studies, 2 reported beneficial effects of garlic on reducing triglyceride levels, while 3 found neutral effects. Among the beneficial studies, effect sizes ranged from small to moderate, with the largest and highest-quality meta-analysis (2023, n=999) showing a moderate effect (SMD = -0.66). The evidence is mixed and does not support a strong or consistent benefit at this time, and most studies did not specify dose or form.

Caveats: Many of the included studies did not reach statistical significance — effect may be smaller than the predominant direction suggests. Evidence base is small (only 5 studies) — conclusions should be considered preliminary. No dose or form data were consistently reported, limiting practical recommendations.

Generated Jul 9, 2026

5 of 5 papersPopulation:

Effects of garlic supplementation on components of metabolic syndrome: a systematic review, meta-analysis, and meta-regression of randomized controlled trials.
- 2023-07-22
- Meta-Analysis · n = 999
- BMC complementary medicine and therapies 23(1)
- - Zhenyue Fu
  - Jiayu Lv
  - Xiya Gao
  - Haoran Zheng
  - Shuqing Shi
  - Xia Xu
  - Bingxuan Zhang
  - Huaqin Wu
  - Qingqiao Song
- PubMed: 37481521
- DOI: 10.1186/s12906-023-04038-0
6 Insights on
- Reduced Triglyceride Levels
- High evidence
- Clinical
Compared to placebo, garlic significantly reduced TG [SMD (95%CI) = -0.66 (-1.23, -0.09)]
Effect
Beneficial
Effect size
Moderate
Significant
Yes
Effects of Garlic on Glucose Parameters and Lipid Profile: A Systematic Review and Meta-Analysis on Randomized Controlled Trials.
- 2024-05-29
- Meta-Analysis
- Nutrients 16(11)
- - Xinyu Zhao
  - Tao Cheng
  - Hui Xia
  - Yanhong Yang
  - Shaokang Wang
- PubMed: 38892625
- DOI: 10.3390/nu16111692
6 Insights on
- Reduced Triglyceride Levels
- High evidence
- Rigorous Journal
Nonetheless, the intervention involving garlic did not yield a substantial impact on triglyceride (TG) levels.
Effect
Neutral
Effect size
Small
Significant
No
Garlic consumption can reduce the risk of dyslipidemia: a meta-analysis of randomized controlled trials.
- 2024-08-07
- Meta-Analysis · n = 21
- Journal of health, population, and nutrition 43(1)
- - Yanbin Du
  - Hua Zhou
  - Wenting Zha
- PubMed: 39113105
- DOI: 10.1186/s41043-024-00608-1
4 Insights on
- Reduced Triglyceride Levels
- High evidence
- Clinical
triglyceride (TG)(WMD = -0.17mmol/L, 95%CI = -0.26 --0.09, P < 0.001)
Effect
Beneficial
Effect size
Small
Significant
Yes
Anti-hyperlipidemia of garlic by reducing the level of total cholesterol and low-density lipoprotein: A meta-analysis.
- 2018-05
- Meta-Analysis · n = 14
- Medicine 97(18)
- - Yue-E Sun
  - Weidong Wang
  - Jie Qin
- PubMed: 29718835
- DOI: 10.1097/md.0000000000010255
3 Insights on
- Reduced Triglyceride Levels
- High evidence
there was no significant difference of TG in the 2 groups (SMD = -0.16, 95% CI, -0.87-0.55)
Effect
Neutral
Effect size
Small
Significant
No
The Therapeutic Effect of Garlic Supplements on the Metabolic Profile of Patients With Type 2 Diabetes: A Systematic Review and Meta-Analysis of Randomized Clinical Trials.
- 2026-02-12
- Review
- Nutrition and metabolic insights 19
- - Anahita Ebrahimzadeh
  - Mohammad Safargar
  - Milad Rajabzadeh-Dehkordi
  - Faezeh Nematolahi
  - Mahsa Samadani
  - Laya Saeid
  - Abbas Mohtashamian
  - Mohammad Ali Izadi
  - Armin Ebrahimzadeh
  - Ali Reza Safarpour
- PubMed: 41695233
- DOI: 10.1177/11786388251413660
6 Insights on
- Reduced Triglyceride Levels
- Low evidence
- Clinical
changes in ... TG ... were not significant overall
Effect
Neutral
Effect size
Small
Significant
No

Garlic and Reduced Triglyceride Levels

Effects of garlic supplementation on components of metabolic syndrome: a systematic review, meta-analysis, and meta-regression of randomized controlled trials.

Effects of Garlic on Glucose Parameters and Lipid Profile: A Systematic Review and Meta-Analysis on Randomized Controlled Trials.

Garlic consumption can reduce the risk of dyslipidemia: a meta-analysis of randomized controlled trials.

Anti-hyperlipidemia of garlic by reducing the level of total cholesterol and low-density lipoprotein: A meta-analysis.

The Therapeutic Effect of Garlic Supplements on the Metabolic Profile of Patients With Type 2 Diabetes: A Systematic Review and Meta-Analysis of Randomized Clinical Trials.