(a).

Enzyme	Food, beverage, or bioactive compounds Food sources in italics	Type of study	Dosages used and references
CYP3A	Rooibos tea	In vivo	Rooibos tea, 4 g/L simmered for 5 minutes, as sole beverage [69]
CYP3A1	Garlic	In vivo	30 to 200 mg/kg garlic oil [36]  80 and 200 mg/kg garlic oil 3 times weekly [70]
	Fish oil	In vivo	20.5 g/kg fish oil [36]: note high dose used
CYP3A2	Garlic	In vivo	200 mg/kg diallyl sulfide [8]
	Cruciferous vegetables	In vivo	50 mg/kg/d indole-3-carbinol [75]
CYP3A4	Curcumin  Turmeric, curry powder [34]	In vivo	50 and 100 mg/kg curcumin [11]