Self-Reported Diet Quality Differentiates Nutrient Intake, Blood Nutrient Status, Mood, and Cognition: Implications for Identifying Nutritional Neurocognitive Risk Factors in Middle Age.

摘要: Evidence for diet quality representing a modifiable risk factor age-related cognitive decline and mood disturbances has typically come from retrospective, cross-sectional analyses. Here screening tool (DST) was used to categorize healthy middle-aged volunteers (n = 141, 40–65 years) into “optimal” or “sub-optimal” groups investigate associations between quality, function, mood. The DST distinguished levels of nutrient intake as assessed by Automated Self-Administered 24-h dietary recall status, blood biomarker measures. Compared with the group, group showed significantly higher vitamin E (p 0.007), magnesium 0.001), zinc 0.043) fiber 0.015), circulating B6 0.030) red cell folate 0.026) lower saturated fatty acids 0.012). Regarding psychological outcomes, had better Stroop processing than those 0.013). Regression analysis revealed that scores were associated fewer 0.002) perceived stress 0.031), although these differences not significant when comparing versus discrete groups. This study demonstrates potential 20-item screen identify both nutritional status in an Australian setting.