Characteristic Study ID	Intervention [route, frequency, total dose/day]	Comparator [route, frequency, total dose/day]
Aubertin‐Leheudre 2008	Isoflavones capsules (orally, 4 times daily, 70 mg/day (44 mg daidzein, 16 mg glycetein, 10 mg genistein))	Placebo capsules (orally, 4 times daily)
Dewell 2002	Soy‐derived isoflavones tablets (orally, 3 times daily, 150 mg/day)	Maltodextrin with 10% caramel colour tablets, (orally, 3 times daily, 150 mg/day)
Gardner 2001	42 g soy proteins containing 80 mg aglycone isoflavones (orally, twice daily, 80 mg/day)	42 g soy proteins containing trace amounts of isoflavones (orally, twice daily, 3 mg/day)
Mackey 2000	28 g soy protein powder with 65 mg isoflavones (orally, once daily, 65 mg/day)	28 g soy protein powder with less than 4 mg isoflavones (orally, once daily, < 4 mg/day)
Wang 2005	Isoflavones capsules (orally, 3 times daily, 157.5 mg/day)	Placebo capsules (orally, 3 times daily)