This double-blind , randomized , placebo-controlled crossover intervention consisted of @ substudies , one with a low-genistein ( LG ) supplement ( @ % daidzein + daidzin , @ % genistein + genistin , and @ % glycitein + glycitin ) and the other with a high-genistein ( HG ) supplement ( @ % daidzein + daidzin , @ % genistein + genistin , and @ % glycitein + glycitin ) .