Wednesday, October 15, 2025
The Latest Medical News
A Summary of The Latest Medical News: A new study suggests that a **green Mediterranean diet**—a plant-based variation of the classic Mediterranean diet that includes green tea and the aquatic plant Mankai—may help **slow brain aging**[2].
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The study, published in Clinical Nutrition and co-authored by researchers from Ben-Gurion University, Harvard T.H. Chan School of Public Health, and the University of Leipzig, analyzed data from about 300 participants over 18 months. Participants followed one of three diets: a standard healthy diet, a traditional calorie-restricted Mediterranean diet, or the green Mediterranean diet, which incorporated daily green tea and Mankai[2].
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Scientists measured protein levels in the participants’ blood. They found that certain proteins, which are associated with **accelerated brain aging**, decreased among individuals on the green Mediterranean diet[2]. These findings suggest the diet’s protective effect on the brain may result from the **anti-inflammatory molecules** found in green tea and Mankai[2].
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The green Mediterranean diet emphasizes plant-based foods and includes very little, if any, red and processed meats. In this study, participants following the green Mediterranean diet consumed two to four cups of green tea daily and a Mankai (duckweed) shake[4].
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Brain MRI scans taken before and after the study revealed that both the traditional and green Mediterranean diets resulted in **less shrinkage in brain regions critical for cognitive function, motor control, and information processing**, compared to the control (healthy diet) group[4].
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Researchers also noted that improved **blood sugar levels** among those following the Mediterranean diets likely contributed to their enhanced brain health, with those consuming more green tea and Mankai experiencing the **greatest benefits**[4].
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These findings add to growing evidence that dietary choices, especially those rich in plant compounds like polyphenols, could play a key role in maintaining **brain health** and protecting against conditions like mild cognitive impairment and Alzheimer’s disease[1][2][4].
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