(14-12-10) Do specific dietary constituents and supplements affect mental energy? Review of the evidence.

Gorby HE, Brownawell AM, Falk MC.

Life Sciences Research Organization, Bethesda, Maryland, USA.
Abstract
The numbers of marketing claims and food, beverage, and drug products claiming
to increase mental energy have risen rapidly, thus increasing the need for
scientific specificity in marketing and food label claims. Mental energy is a
three-dimensional construct consisting of mood (transient feelings about the
presence of fatigue or energy), motivation (determination and enthusiasm), and
cognition (sustained attention and vigilance). The present review focuses on
four dietary constituents/supplements (Ginkgo biloba, ginseng, glucose, and
omega-3 polyunsaturated fatty acids) to illustrate the current state of the
literature on dietary constituents and mental energy. The strongest evidence
suggests effects of Ginkgo biloba on certain aspects of mood and on attention
in healthy subjects, as well as associations between omega-3 polyunsaturated
fatty acids and reduced risk of age-related cognitive decline. Limitations of
the current data and challenges for future research are discussed.

Source: Nutr Rev. 2010 Dec;68(12):697-718.

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