Dietary glycaemic load associated with cognitive performance in elderly subjects

Area of Science:

• Gerontology
• Nutritional Science
• Cognitive Neuroscience

Background:

• Aging is linked to cognitive decline and dementia, increasing healthcare demands.
• Diet is a potential modifiable factor influencing cognitive impairment in older populations.

Purpose of the Study:

• To investigate the association between dietary patterns, dietary glycaemic load (GL), and cognitive function in older Irish adults.

Main Methods:

• Analysis of 208 community-dwelling older adults (aged 64-93 years).
• Dietary intake assessed via food frequency questionnaire.
• Cognitive function measured using the Mini-Mental State Examination (MMSE).
• Statistical models (logistic and Poisson regression) used to analyze the relationship between dietary GL and MMSE scores.

Main Results:

• 'Prudent' dietary patterns correlated with higher MMSE scores (better cognition) compared to 'Western' patterns.
• A higher dietary glycaemic load (GL) was inversely associated with MMSE scores, indicating poorer cognitive function.
• These associations remained significant after adjusting for various confounding factors.

Conclusions:

• High glycaemic diet consumption is associated with poorer cognitive performance in older Irish adults.
• Dietary choices, specifically glycaemic load, play a role in maintaining cognitive health in aging populations.