Made for English class

1. Blueberry Supplementation
Improves Memory in Older
Adults.
Edgar Lepman
Food Technology
EULS/ EMU
Tartu
2011

2. Introduction
The number of those suffering from dementia is
increasing among adult population.
Dementia is incurable but it can be prevented at
an early stage of predementia conditions by
diversifying diet with blueberry products.

3. Materials and Methods
• Participants.
Nine elderly volunteers (5 men and 4 women)
who had experienced memory decline such as
forgetfulness were invited to take part in the
experiment.

4. Materials and Methods
• Procedure.
Participants were divided into two groups
(placebo beverage and blueberry juice groups)
and their health indices were measured
afterwards.
Wild blueberry juice was prepared from ripe,
frozen wild blueberries.

5. Materials and Methods
The most abundant components in the juice
were: glucose, fructose, and malic and citric
acid.
Daily juice and placebo consumption was
maintained between 6 and 9 mL/kg, hence
individuals weighing 54- 64 kg were
prescribed 444 mL/day.

6. Materials and Methods
Subjects were forbidden to consume berry
fruits, juices and berry extracts for the duration
of the research (12 weeks).
Memory function was measured with Verbal
Paired Associate Learning Test (V-PAL) and
Californian Verbal Learning Test (CVLT)

7. Results
• Figure 1 shows that memory performance for
the blueberry juice sample group has
significantly improved at 12 weeks.

8. Results
• Figure 2 shows that the memory performance
of the blueberry juice group exceeded that of
the placebo beverage group.

9. Conclusion
Research indicated that wild blueberry juice
supplementation for 12 weeks improved memory
function in older adults with early memory decline.
Construction of this finding should be tempered
because of the relatively small sample size and the
absence of a blueberry-specific control, although
comparison with the placebo group data provides
proof of the effectiveness of blueberry
supplementation.

10. Thank you for your attention!

11. References
• Journal article “Blueberry
Supplementation Improves Memory in
Older Adults.”
http://pubs.acs.org/doi/abs/10.1021/jf90
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