Mediterranean Diet Cuts Chronic Kidney Disease Risk, Study Finds

A global study has linked the Mediterranean diet to a lower risk of chronic kidney disease (CKD). This eating plan focuses on whole foods like vegetables, fruits, grains, and legumes while cutting back on red meat, sugar, and processed items. With CKD affecting around 800 million adults worldwide, researchers examined how diet could influence its development.

The Mediterranean diet, also called the Planetary Health Diet, was first introduced in 2019 and updated in 2025. It recommends daily portions of 300g of vegetables, 200g of fruit, 75g of legumes, and 50g of nuts. Small amounts of fish, poultry, eggs, and red meat are included, but added sugars, salt, and saturated fats are kept to a minimum.

The study found that people who closely followed this Mediterranean diet had a reduced chance of developing CKD. High fibre intake from plant foods appears to play a key role, as it helps lower inflammation and improve kidney function. Other benefits include better lipid metabolism and less metabolic stress on the kidneys. Common risk factors for CKD include obesity, diabetes, high blood pressure, heart disease, and family history. By contrast, the Mediterranean diet's emphasis on whole, plant-based foods may help counteract these risks.

The findings suggest that adopting the Mediterranean diet could help prevent CKD. Its focus on fibre-rich, minimally processed foods supports kidney health while also aligning with broader sustainability goals. Further research may explore how dietary changes could reduce CKD cases globally.