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High phenolic early harvest extra virgin olive oil shows notable improvement in cognitive function compared to a moderate phenolic version and the Mediterranean diet alone.
2020 Journal of Alzheimer's Disease A Randomized Clinical Trial of Greek High Phenolic Early Harvest Extra Virgin Olive Oil in Mild Cognitive Impairment: The MICOIL Pilot Study Tsolaki M, Lazarou E, Kozori M, Petridou N, Tabakis I, Lazarou I, et al.
Clinical Study Alzheimer's Disease Cognitive Function Extra Virgin Olive Oil
A randomized prospective study was conducted examining the effects of high phenolic early harvest extra virgin olive oil (HP-EH-EVOO) and moderate phenolic extra virgin olive oil (MP-EVOO) against the Mediterranean Diet (MeDi) in individuals with mild cognitive impairment. Participants were genetically tested for susceptibility to Alzheimer's disease and had their cognitive functions tested at the start and after 12 months. They were then randomly put into one of three groups: those who received HP-EH-EVOO, those who received MP-EVOO, and those who only received instructions on following the MeDi.
The results showed that participants who consumed HP-EH-EVOO demonstrated better cognitive performance in almost all areas over the course of the study, compared to those who consumed MP-EVOO and those who followed the MeDi. MP-EVOO consumers also demonstrated noticeable cognitive improvement compared to the MeDi group, who exhibited worse or similar cognitive performance to their baseline in almost all areas. Moreover, participants who consumed either form of olive oil performed better in cognitive tests, regardless of their predisposition to Alzheimer's disease.
Extra virgin olive oil (EVOO) intake can reduce inflammatory markers and improve gastrointestinal symptoms in patients with Ulcerative Colitis.
2020 European Journal of Clinical Nutrition The effects of extra virgin olive oil and canola oil on inflammatory markers and gastrointestinal symptoms in patients with ulcerative colitis Morvaridi M, Jafarirad S, Seyedian SS, Alavinejad P, Cheraghian B
Clinical Study Extra Virgin Olive Oil
In the methodology of this study, forty patients suffering from Ulcerative Colitis participated in a crossover clinical trial, where the effects of extra virgin olive oil were compared with canola oil as part of their diet. Blood samples were collected before and after a 20-day intervention period, and measures such as disease activity and gastrointestinal symptoms were evaluated using established rating scales.
In terms of results, the consumption of EVOO showed a significant decrease in recognized inflammatory markers. Furthermore, symptoms such as bloating, constipation, urgent bowel movements, and incomplete bowel evacuation were reported to have been significantly reduced following the consumption of EVOO. Therefore, this study suggests that extra virgin olive oil can offer significant benefits as a complementary medicine in the treatment of Ulcerative Colitis.