The main causes of fatty liver or fatty liver disease are as follows:

The main causes of fatty liver:
Excessive alcohol consumption (Alcoholic Fatty Liver Disease – AFLD):

Long-term excessive alcohol consumption can damage liver cells and cause fat to accumulate in the liver.

Overweight and obesity (Obesity – main cause):

 

https://youtu.be/ZnG82ImskXw

Weight gain is one of the most important causes of non-alcoholic fatty liver disease (NAFLD).

Diabetes and high blood pressure (Type 2 Diabetes & High BP):

People with uncontrolled blood sugar levels and high blood pressure are more likely to develop fatty liver.

High Cholesterol and Triglycerides in the Blood:

When the level of lipids in the blood increases, it accumulates in the liver and causes fatty liver.

Poor Diet & Fast Food:

Constant consumption of fried and deep-fried foods, soft drinks, and flour products can increase fat in the liver.

Lack of Exercise:

A sedentary lifestyle can cause calories to be converted into fat and stored in the liver.

 

https://youtu.be/ZnG82ImskXw

Side Effects of Medications:

Long-term use of steroids and some cancer medications can cause fat to accumulate in the liver.