The Mediterranean diet may support healthy ageing through more than its well-known combination of vegetables, fruit, whole grains, legumes, nuts, fish and olive oil. New research suggests that people who follow this eating pattern more closely may also have higher levels of two small proteins produced by mitochondria, the structures inside cells that generate energy.
A Possible Link to Cellular Protection
Researchers at the University of Southern California examined the relationship between Mediterranean-style eating and two proteins known as humanin and SHMOOSE. These proteins have attracted scientific interest because they may be involved in cellular stress responses and have been linked in earlier research to processes relevant to ageing and health.
The researchers found that older adults who followed the Mediterranean diet more closely had higher levels of these proteins. The result offers a possible clue to how eating patterns may be connected with the body’s underlying biology.
Why Mitochondria Matter
Mitochondria help supply energy that cells need to function. Their activity is important in many tissues, including the heart and brain, and changes in mitochondrial function have been studied in connection with ageing and several chronic conditions.
The findings suggest that mitochondrial proteins could be one part of the biological relationship between diet and long-term health. However, the study does not establish that higher protein levels directly prevent heart disease, Alzheimer’s disease or other age-related conditions.
What the Findings Mean for Everyday Eating
The research adds to scientific interest in Mediterranean-style eating, which emphasises a varied diet rich in plant foods and healthy sources of fat. It does not prove that a particular diet will produce the same protein changes or health outcomes in every person.
Further research is needed to determine whether these proteins help explain the potential benefits of the eating pattern and whether the changes translate into measurable improvements in health as people age.
