Can olive oil improve mood?

As part of a healthy diet (one that includes high intake of fruit and vegetable and oily fish) olive oil has been found to play a role in decreasing the risk of depression. A 2015 study found that in older populations, a Mediterranean diet supplemented with olive oil or nuts was associated with improved cognitive function, and there’s been more studies into how it may reduce the risk of Alzheimer’s. Other early research has suggested that olive oil may have protective effects against Type 2 diabetes and some forms of cancer – however more research is needed before we can draw any firm conclusions.