Epidemio logical study for clarifying the relation between nutrients assessed by serum sample and composite outcome of disability and death

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In this study, we investigated the relation between nutrients which associated with Japanese diet and incident disability. We found that higher serum equol showed lower risk for disability or death compared with non-producer of equol. However, other isoflavones, i. e., genistein, glycitein, and daidzein did not show any significant relations. Other nutrients, which we studied were fatty acids, folate, and vitamin B12. These nutrients did not show significant relation with incident disability or death.