Macadamias

Macadamia nuts, high in oleic acid, the same heart-healthy fat found in olive oil, may preserve brain health by keeping your blood pressure low and preventing stroke, according to a study published in the August 2011 issue of the journal Neurology. A fatty acid known as palmitoleic acid, also found in high quantities in macadamia nuts, is an important component of myelin, the fatty layer that insulates and protects nerve cells in the brain. As such, macadamia nuts may contribute to healthy early brain development and normal brain function.