Table 1.

Studies showing no cholesterol lowering effect:

References	Preparation	Duration	Dose
Ziaei et al., 2001 [26]	Garlic powder (Garlet)	3 months	800 mg/day
Gardner et al., 2001 [27]	Garlic powder	12 weeks	500, 1000 mg/day
Rahman et al., 2000 [28]	Aged garlic extract	13 weeks	5 ml/day
Superko et al., 2000 [29]	Garlic powder	3 months	900 mg/day
Byrne et al., 1999 [30]	Garlic powder (Kwai)	6 months	900 mg/day
McCrindle et al., 1998 [31]	Garlic powder (Kwai)	8 weeks	900 mg/kg
Berthold et al., 1998 [32]	Steam-distilled garlic oil	12 weeks	10 mg/day
Isaacsohn et al., 1998 [33]	Garlic powder (Kwai)	12 weeks	900 mg/day
Simons et al., 1995 [34]	Garlic powder (Kwai)	12 weeks	900 mg/day
Luley et al., 1986 [25]	Commercial dried garlic	6 weeks	600 mg/day
Lutomski, 1984 [24]	Commercial garlic preparation	12 weeks	–