(a).

Enzyme	Food, beverage, or bioactive compounds Food sources in italics	Type of study	Dosages used and references
	Cruciferous vegetables	Clinical, observational	Approximately 5 and 10 servings/d of cruciferous vegetables including frozen broccoli, cauliflower, fresh cabbage (red and green), and fresh radish sprouts [114]  >31.2 g/d cruciferous vegetables [115]  4.5 cups of cruciferous vegetables/d, including 0.5 cups of radish sprouts, 1 cup of frozen cauliflower, 2 cups of frozen broccoli, and 1 cup of fresh cabbage [116]  300 g/d cooked Brussels sprouts [117]
	Allium vegetables	Clinical	3 tbsp fresh chives, 1.33 cups of fresh leeks, 1 tsp garlic, and 0.5 cups of fresh onion [116]
	Resveratrol  Grapes, wine, peanuts, soy, and itadori tea  [32]	Clinical	1 g/d resveratrol [28]: note high dose used
	Citrus	Observational, in vivo	>76 g/d citrus [115]  20 mg limonoid mixture every 2 days [124]
	Garlic	In vivo	30 to 200 mg/kg garlic oil [36]  80 and 200 mg/kg garlic oil 3 times weekly [70]
GSTs	Fish oil	In vivo	20.5 g/kg fish oil [36]: note high dose used
	Black soybean	In vivo	1 g/kg black soybean seed coat extract [44]
	Purple sweet potato	In vivo	100 and 200 mg/kg anthocyanin extract from purple sweet potato [118]
	Curcumin	In vivo	Diet of 2% curcumin [119]
	Green tea	In vivo	Equivalent of 4 cups/d (200 mL each) of green tea [120]
	Rooibos tea	In vivo	Rooibos tea as sole beverage; concentration 2 g tea leaves/100 mL water steeped for 30 minutes [93]
	Honeybush tea	In vivo	Honeybush tea as sole beverage; concentration 4 g tea leaves/100 mL water steeped for 30 minutes [93]
	Ellagic acid  Berries, pomegranate, grapes, walnuts, and blackcurrants [42]	In vivo	30 mg/kg/d ellagic acid [43]
	Rosemary	In vivo	20 mg/kg carnosic acid 3 times weekly  [121]
	Ghee (clarified butter)	In vivo	19.5 mg CLA (conjugated linoleic acid)/g fat [122]
	Genistein (kidney GSTs)  Fermented soy (e.g., miso, tempeh) contains up to 40% bioavailable genistein versus 1% or less in other soy products [125]	In vivo	1.5 g/kg genistein [123]: note high dose used