Olive oil polyphenols show potential link to sleep quality

Research is investigating whether olive oil polyphenols, such as oleocanthal, elaiasin, and hydroxytyrosol, can influence sleep quality through their antioxidant and anti-inflammatory properties. According to Professor Giorgos Sakkas of the University of Thessaly, while these bioactive compounds show promise, current findings do not constitute a proven treatment for insomnia in humans.

Studies published in 2023 and 2025 observed changes in sleep indicators in mice used as Alzheimer’s disease models. However, these studies measured sleep based on periods of inactivity rather than electroencephalography, limiting the ability to draw definitive conclusions regarding deep sleep or the direct application of these results to human insomnia.

Clinical research, such as the OleoMetS study involving 102 adults with metabolic syndrome, continues to examine these effects. Experts note that the concentration of these substances varies significantly between different types of olive oil, and the transition from biological hypothesis to clinically proven knowledge remains a primary challenge.