|Author||Year||Study Type||Patients||Daily Dose and Preparation||Effect of Garlic|
|Berthold||1998||RCT||25⁎||10 mg steam distilled oil||No difference in multiple measures|
|Isaacsohn||1998||RCT||40||900 mg powder||No difference in multiple measures|
|Jain||1993||RCT||42||900 mg powder||Reduction in LDL of 11% vs. 3% for placebo|
|Warshafsky||1993||Meta-analysis||5 trials||1/2–1 clove per day||Reduction in total cholesterol of 95 mg/dL|
|Hypertension Silagy||1994||Meta-analysis||8 trials||600–900 mg powder||Small reduction in systolic and diastolic BP|
Reproduced from Gibbons et al. (24).
BP indicates blood presssure; LDL, low-density lipoprotein; and RCT, randomized controlled trial.
↵⁎ Cross-over study.