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◎ Medicine & Health·2 min·Updated Mar 14, 2026

What is Fatty Liver Disease (NAFLD)?

Non-Alcoholic Fatty Liver Disease

Quick Answer

This condition occurs when excess fat builds up in the liver without alcohol consumption. It can lead to inflammation and serious liver damage if not managed properly.

Overview

Non-Alcoholic Fatty Liver Disease (NAFLD) is a condition where fat accumulates in the liver of people who drink little to no alcohol. This buildup can disrupt the liver's normal functions, potentially leading to inflammation, scarring, and even liver failure over time. It is often associated with obesity, diabetes, and high cholesterol, making it a significant health concern in today's society. The liver plays a crucial role in processing nutrients and filtering toxins from the blood. When too much fat builds up, it can cause the liver to become inflamed, leading to a condition called non-alcoholic steatohepatitis (NASH). For example, a person who is overweight and has a poor diet may develop NAFLD, which could progress to more severe liver issues if lifestyle changes are not made. Understanding NAFLD is important because it affects a growing number of people worldwide, especially in developed countries. Early detection and lifestyle modifications, such as weight loss and improved diet, can help manage the disease effectively. Awareness of this condition can lead to better health outcomes and reduce the risk of severe liver complications.

Frequently Asked Questions

NAFLD is primarily caused by factors such as obesity, insulin resistance, high blood sugar levels, and high cholesterol. These conditions lead to an imbalance in how the liver processes fats.
Many people with NAFLD may not experience any symptoms at all. However, some may feel tired, have discomfort in the upper right abdomen, or notice unexplained weight loss.
Treatment typically involves lifestyle changes such as losing weight, eating a balanced diet, and increasing physical activity. In some cases, medications may be prescribed to manage related conditions like diabetes or high cholesterol.