Dietary genistein intake and cognitive performance in a multiethnic cohort of midlife women.

Objective: To examine the relationship between food frequency questionnaire estimated isoflavone intakes and cognitive performance.

Design: The Study of Women's Health Across the Nation (SWAN), is a multiethnic, community based, longitudinal study of women aged 42 to 52 years at entry. Dietary isoflavone intakes were estimated from an interviewer-administered food frequency questionnaire at baseline.