Garlic reduces TC to a modest extent , an effect driven mostly by the modest reductions in TAG , without appreciable LDL lowering or HDL elevation .
Higher baseline line TC levels and the use of dietary modification may alter the effect of garlic on these parameters .
In order to determine the impact of  garlic on total cholesterol ( TC ) , TAG levels , as well as LDL and HDL  , and establish if any variables have an impact on the magnitude of this effect , a meta- analysis was conducted .
Therapy with garlic: results of a placebo-controlled, double-blind study.
A double-blind study of 40 hypercholesterolaemic out- patients was carried out over a period of four months to examine the effects of a garlic powder preparation*. The drug group received 900 mg garlic powder per day , equivalent to 2,700 mg of fresh garlic . During the therapy , the drug group showed significantly lower total cholesterol , triglycerides and blood pressure than those of the placebo group . In addition , results of a self-evaluation question naire indicated that patients in the drug group had a greater feeling of ' well-being '
Garlic reduces TC to a modest extent , an effect driven mostly by the modest reductions in TAG , without appreciable LDL lowering or HDL elevation .
Higher baseline line TC levels and the use of dietary modification may alter the effect of garlic on these parameters .
In order to determine the impact of  garlic on total cholesterol ( TC ) , TAG levels , as well as LDL and HDL  , and establish if any variables have an impact on the magnitude of this effect , a meta- analysis was conducted .