New Study Shows Mediterranean Diet Could Slow Signs of Accelerated Brain Aging
A new study published in April suggests that switching to a diet full of fresh veggies and low in processed foods could have a significant impact on your brain’s biological age. The research, published in eLife, found that following a Mediterranean diet rich in vegetables, seafood, and whole grains, or simply following dietary guidelines, could slow the signs of accelerated brain aging typically seen in obesity with as little as 1 percent loss in body weight.
The study, conducted at one workplace in Israel, involved 102 participants who were divided into three diet groups: a Mediterranean diet with lots of nuts, fish, and chicken; a Mediterranean diet with added extras such as green tea; and a diet based on healthy dietary guidelines. The participants’ brain scans were taken before the trial began and again after 18 months, along with tests of liver function, cholesterol levels, and body weight.
The results showed that for every 1 percent of body weight lost after following a set diet or health guidelines, the participants’ brains appeared almost nine months younger than their chronological age. Lead author and neuroscientist Gidon Levakov of Ben-Gurion University of the Negev in Israel emphasized the importance of a healthy lifestyle, including lower consumption of processed food, sweets, and beverages, in maintaining brain health.
While the study provides promising evidence for the benefits of a Mediterranean diet on brain aging, there are limitations to consider. The majority of participants were men, and the data collected was from online surveys about their diet and lifestyle habits. Additionally, exercise levels were also a factor, as participants received a free gym membership as part of the trial.
It’s also worth noting that past research has shown discrepancies in who reaps the health benefits of a diet rich in Mediterranean staples, with those on higher incomes experiencing greater improvements in cardiovascular health than those on lower incomes, even with the same adherence to the diet.
While the study provides valuable insights into the potential benefits of a Mediterranean diet on brain aging, further research is needed to fully understand the long-term effects and potential disparities in its impact. Nonetheless, the findings highlight the importance of a healthy diet and lifestyle in maintaining brain health.