Table 2.

Several types of bioactive compounds.

Bioactive compounds	Examples	Sources	Supposed anticancer effects
Polyphenolic compounds	Quercetin, resveratrol, catechin	Red wine, chocolate, flaxseed oil	Carcinogen detoxification, inhibit tumor initiation/promotion, antimutagen
Carotenoids	Lycopene, lutein, cryptoxanthin	Tomatoes, carrots, leafy vegetables	Antimutagen
Sulfur-Containing compounds	Allicin, diallyl sulfide, allyl mercaptan Sulforaphane	Garlic, onion, leek	Carcinogen detoxification, inhibit tumor initiation/promotion
Terpenoid	Perillic acid, d-limonene	Cherries, mint, herbs	Carcinogen detoxification, inhibit tumor initiation/promotion