MASH replaces NASH: How diet and lifestyle can reverse fatty liver disease

A condition once known as nonalcoholic steatohepatitis (NASH) now has a new name: metabolic dysfunction-associated steatohepatitis, or MASH. The change was introduced in June 2023 after agreement from global liver health organisations. This serious form of fatty liver disease causes inflammation and damage, but experts say lifestyle adjustments can help reverse its effects. MASH develops when excess fat builds up in the liver, leading to swelling and scarring. Without treatment, it can progress to severe conditions like cirrhosis or liver cancer. However, doctors emphasise that diet and lifestyle changes can play a major role in managing—and even reversing—the disease.

The Mediterranean diet is often advised for those with MASH. This eating plan focuses on vegetables, fruits, whole grains, lean proteins, and healthy fats while cutting back on sugar, refined carbohydrates, and processed foods. Intermittent fasting has also shown benefits, improving metabolic health and reducing liver fat in some patients. Beyond diet, maintaining a healthy weight and avoiding alcohol are crucial steps. Regular physical activity further supports liver function by helping to control weight and reduce inflammation. These changes, when sustained, can slow or even reverse liver damage over time.

The renaming of NASH to MASH reflects a clearer link between metabolic health and liver disease. While the condition poses serious risks, research confirms that targeted dietary and lifestyle changes can reduce fat, lower inflammation, and prevent further harm. For those diagnosed, early action through food choices, exercise, and weight management remains the most effective way to protect liver health.