Researchers from Stanford University in the United States determined the cellular effects of the Mediterranean diet – the results of the scientists’ work were published in 2019. magazine Nature Cell Biology.
People who follow the Mediterranean diet, which emphasizes plant-based foods and fish rather than red meat or dairy products, tend to be healthier in many ways. But despite the strong evidence for its health benefits, it remains unclear exactly how this combination of foods at the cellular level can extend lifespan.
The Mediterranean diet is full of healthy fats, also known as monounsaturated fatty acids (MUFAs), found in foods like nuts, fish, and olive oil. The new study focused on oleic acid.
The scientists conducted several experiments with nematodes (roundworms used as model organisms for research). Apparently, oleic acid protects cell membranes from oxidative damage and increases two essential cellular components called organelles.
“These effects are significant: Roundworms fed oleic acid live approximately 35% longer than worms fed a conventional diet,” the authors write.