Table 6: (a) In vivo example nutrient inducers of sulfotransferases (SULTs). (b) Selected dietary sources of sulfur-containing compounds (adapted from [110]).
(a)

EnzymeFood, beverage, or bioactive compounds
Food sources in italics
Type of studyDosages used and references

SULTsCaffeine 
Coffee, cocoa, black tea, and green tea [111]
In vivo 2, 10, and 50 mg/kg caffeine [107]
Retinoic acid (bioactive form of vitamin A)  
Meat (especially liver), fish, egg, and dairy products contain retinol; apple, apricot, artichokes, arugula, asparagus, and other plant foods contain provitamin A carotenes [111]
In vivo 2, 10, and 50 mg/kg/d retinoic acid suspension in corn oil [108]

(b)

Animal products Fish, shellfish, lamb, beef, chicken, pork, duck, goose, turkey, egg, and cheese

Legumes Lentils, peas, and butter beans

Grains Barley, oatmeal

Vegetables and fruits Cabbage, horseradish, Brussel sprouts, leeks, cress, haricot beans, apricots, peaches, spinach, and watercress

Nuts and seeds Brazil nuts, almonds, peanuts, and walnuts

Herbs and spices Mustard, ginger