Effect of an enriched drink on cognitive function in frail elderly persons

Area of Science:

• Gerontology
• Nutritional Science
• Cognitive Neuroscience

Background:

• Elderly individuals often experience cognitive decline, affecting memory and learning.
• Poor nutritional status is a potential contributing factor to cognitive impairment in older adults.
• Essential micronutrients may play a role in maintaining or improving cognitive function.

Purpose of the Study:

• To investigate the impact of an essential micronutrient-enriched drink on cognitive function in frail elderly persons.
• To determine if nutritional supplementation can mitigate age-related cognitive difficulties.

Main Methods:

• A randomized, double-blind, placebo-controlled trial was conducted with 101 frail adults aged 65+.
• Participants received either an enriched drink or a placebo for 6 months.
• Cognitive function was assessed using word learning, delayed recall, category fluency, and recognition memory tests, alongside biochemical analyses.

Main Results:

• The supplement group showed significant improvements in word learning and category fluency for professions compared to the placebo group.
• Plasma vitamin B12 levels increased, and homocysteine levels decreased in the supplement group.
• No significant differences were observed in delayed word recall, recognition memory, or category fluency for animals.

Conclusions:

• Nutritional supplementation with essential micronutrients may enhance neuropsychological performance in frail elderly individuals.
• This study supports the role of nutrition in supporting cognitive health in aging populations.