Clinical trial · Nutrition · 18 Oct 2026
Eating blueberries every day may have a surprising effect on your mood
Source: ScienceDaily
What the research found
Eating blueberries every day could have surprising effects on mood, according to a small study that found greater reductions in depressive symptoms among older adults who consumed the fruit for three months. Researchers also detected changes in gut microbial enzymes, suggesting a possible gut-brain connection, although the mood benefits were not statistically significant compared with a placebo.
Evidence level: Clinical trial. This is among the stronger kinds of evidence, but one study rarely settles a question.
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