Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Blueberry (Vaccinium spp.) has gained attention in recent years for its potential cognitive benefits, including support for memory and confusion. The justification for its use in this context arises primarily from scientific research rather than traditional medicine, as blueberries have not historically been used specifically for confusion or cognitive decline in folk or herbal traditions.

Blueberries are rich in polyphenols, particularly anthocyanins, which have antioxidant and anti-inflammatory properties. Several animal and human studies have suggested that blueberry supplementation may improve cognitive function. For example, a 2010 study published in the Journal of Agricultural and Food Chemistry found that older adults who consumed blueberry juice daily demonstrated improvements in memory and a reduction in depressive symptoms compared to a placebo group. Other randomized controlled trials have shown modest improvements in executive function and memory in both older adults and children after the consumption of blueberry-rich foods or extracts.

However, the evidence supporting blueberry specifically for "confusion"—a vague symptom that can result from many causes—is limited. While there is early evidence suggesting potential benefits for general cognitive function and possibly slowing cognitive decline, large-scale, long-term studies are lacking, and the clinical significance of these findings is still under debate. Thus, while the use of blueberries for confusion has some scientific basis, the strength of the evidence is moderate at best and far from conclusive.

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