Syzygium malaccense fruit supplementation protects mice brain against high-fat diet impairment and improves cognitive functions

•S. malaccense fruit intake counteracts high-fat diet impairment in the hippocampus.•Supplementation with the fruit improved learning and memory tasks.•The fruit intake prevented a high-fat diet-induced high blood-glucose response.•The supplementation with S. malaccense prevented lipid peroxidation in the brain.