Found in broccoli and broccoli sprouts, brussels sprouts, and cabbage, this compound activates production of “phase 2” liver enzymes, which transform stubborn fat-soluble toxins into water-soluble ones that can more easily be secreted. It also helps the body neutralize harmful carcinogens, including excess estrogen. Dose: Take 30 mg of broccoli seed extract daily in capsule form, or drink one to two cups daily of tea made with sulforaphane glucosinolate (SGS).