Dietary blueberry improves cognition among older adults in a randomized, double-blind, placebo-controlled trial | European Journal of Nutrition

The Nugget

  • Dietary blueberry consumption can enhance cognitive function in older adults, particularly improving executive function, as demonstrated by a randomized, double-blind, placebo-controlled trial.

Make it stick

  • 🧠 Blueberries boost brain power in seniors
  • 🔵 Blueberry magic: Stronger cognition in older adults
  • 🍇 A cup of blueberries a day may keep cognitive decline away
  • 🤔 Blueberries = Better brain function in the elderly

Protocol

  • 13 men and 24 women aged 60 to 75 participated
  • Consumed 24g/day of freeze-dried blueberries or a blueberry placebo for 90 days
  • Completed balance, gait, and cognitive tests at baseline, 45 days, and 90 days
  • Methodology: Randomized, double-blind, placebo-controlled trial

Terminology

  • ANT: Attention network task
  • CVLT-II: California verbal learning test, 2nd ed.
  • DCF: 2′,7′-Dichlorofluorescin diacetate
  • fMRI: Functional magnetic resonance imaging
  • TST: Task-switching test

Key insights

Cognitive Improvement with Blueberry Consumption

  • Dietary blueberry intake was associated with improved executive function.
  • Blueberry consumption did not impact gait or balance in older adults.

Positive Effects of Blueberries on Cognition

  • Blueberries have shown to enhance signaling in the brain and possess anti-inflammatory properties.
  • Anthocyanins in blueberries have been linked to improved memory and cognitive function.

Key quotes

  • "Participants in the blueberry group showed significantly fewer repetition errors in the California Verbal Learning test."
  • "Findings show that easily achievable quantities of blueberry can enhance cognitive function in older adults."
  • "Dietary interventions with blueberries have shown positive outcomes in models of aging."
This summary contains AI-generated information and may have important inaccuracies or omissions.