New research indicates that eating a Mediterranean diet—rich in fruits, vegetables, fish, olive oil, whole grains, nuts, seeds, and legumes—may help maintain mental health in older adults. The study tracked over 3,000 adults aged 50 to 90 in England during the height of the COVID-19 pandemic to assess how their dietary habits related to psychological well-being.

Participants completed surveys measuring positive psychological traits such as autonomy, life satisfaction, purpose, and control over daily routines. Those who closely followed the Mediterranean diet reported a significantly stronger sense of overall well-being and experienced less decline in happiness and life satisfaction during lockdowns compared to peers who did not adhere to the diet.

Researchers noted that the well-being boost was not due to differences in caloric intake but rather the specific types of foods consumed. "Since the Mediterranean diet is loaded with a variety of plant foods, it provides an increase in nutrients for the body and brain, special compounds that reduce inflammation, and prebiotics to feed the good gut microbes," said Kulp, who was not involved in the study.

However, the study had limitations, including only two days of dietary data and psychological assessments conducted early in the pandemic. Despite this, the findings align with previous research suggesting the diet's benefits for overall health as people age.

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