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Public Health.

Siya Shan1, Ting Shen2

  • 1Zhejiang University School of Medicine, HangZhou, ZheJiang, China.

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Summary
This summary is machine-generated.

Healthy diets like DASH, AMED, and MIND may reduce the risk of severe subjective cognitive decline (SCD). This study suggests dietary patterns can mitigate cognitive difficulties in middle-aged adults.

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Area of Science:

  • Nutrition Science
  • Neuroscience
  • Public Health

Background:

  • Subjective cognitive decline (SCD) is a self-reported cognitive difficulty potentially indicating early dementia.
  • Diet is a modifiable factor for cognitive health, but research on dietary patterns and SCD is limited.
  • Identifying effective dietary strategies is crucial for preventing cognitive decline.

Purpose of the Study:

  • To investigate the association between adherence to specific healthy dietary patterns and the risk of subjective cognitive decline (SCD).
  • To evaluate the impact of the Chinese Healthy Eating Index (CHEI), DASH, aMed, hPDI, and MIND diets on SCD.
  • To provide evidence for dietary interventions aimed at mitigating cognitive decline.

Main Methods:

  • The Teacher's Aging Project (TAP) involved 3,560 Chinese schoolteachers (2022-2023).
  • Dietary patterns were assessed using a simplified food frequency questionnaire (FFQ).
  • Multinomial logistic regression analyzed associations between dietary pattern adherence (tertiles) and SCD, adjusting for covariates.

Main Results:

  • Higher adherence to DASH, AMED, and MIND diets was significantly associated with reduced risk of severe SCD (ORs ranging from 0.70 to 0.64).
  • The MIND diet showed a strong significant association with lower severe SCD risk (OR=0.64 in Model 1, OR=0.72 in Model 3).
  • Associations with moderate SCD were generally weaker and not statistically significant.

Conclusions:

  • Adherence to DASH, AMED, and MIND dietary patterns is linked to a lower risk of severe subjective cognitive decline.
  • These findings suggest that adopting healthier dietary patterns may be a viable strategy for reducing cognitive decline risk.
  • Further research can explore specific food components and mechanisms underlying these associations.