A recently published study (July 2018) in the Journals of Gerontology revealed that supplementation with polyphenols present in blueberry and grapes improved episodic memory in healthy adults. This product is called Neurophenols.
Neurophenols is a clinically researched blend of wild blueberries and grape extract. It is available from Atrium Innovation brands Pure Encapsulations, Douglas Labs and Garden of Life. The dose used in the study was 600 mg/day for a total of six months.
It was found that this supplementation were able to reverse memory alterations in healthy elderly individuals.