A small study has found that resveratrol, a compound found in red grapes, red wine and dark chocolate, may help treat Alzheimer’s disease.

Researchers at Georgetown University observed that it affects a biomarker for Alzheimer’s, but they cautioned that more studies are needed before resveratrol can be recommended for individuals with disease, which does not have a cure.

In their study, researchers reported that resveratrol helped stabilize amyloid-beta40 levels in the blood and cerebrospinal fluid of those who consumed the compound compared to the control group, which did not consume the compound and saw their amyloid-beta40 levels decrease.

In patients with Alzheimer’s, amyloid-beta levels decrease in the cerebrospinal fluid, while deposits of the substance increase in the brain, where it becomes insoluble. These insoluble plaques are a hallmark of the disease, which eventually leads to the death of nerve cells in the brain.

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