rct
2021
Cognitive Improvement and Safety Assessment of a Dietary Supplement Containing Propolis Extract in Elderly Japanese: A Placebo-Controlled, Randomized, Parallel-Group, Double-Blind Human Clinical Study
Asama T, Hiraoka T, Ohkuma A
Published in Evidence-Based Complementary and Alternative Medicine
Key Findings
Brazilian green propolis for 24 weeks showed no significant benefit on the primary cognitive endpoint, with improvement limited to a subgroup analysis.
Conclusions
Primary cognitive outcome was null; subgroup findings are exploratory.
Limitations
Industry funded; positive result driven by post hoc subgroup.
Supplements Studied
Propolis
Other
Brazilian green propolis for 24 weeks showed no significant benefit on the primary cognitive endpoint.
Related Health Concerns
Study Details
Year:2021
Sample Size:79
Duration:24 weeks
Quality Score:5/10
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