Fatty liver disease, also known as hepatic steatosis, is becoming more common in Indonesia. Today, around 20-30% of Indonesians are estimated to have fatty liver, and many of them don’t even know it.

This condition often develops quietly, without noticeable symptoms, but it can become dangerous if left untreated. Over time, fatty liver may lead to inflammation, scarring (fibrosis), cirrhosis, or even liver cancer.

To protect your liver, the first and most important step is understanding what causes fatty liver. Below, Bali International Hospital explains the main causes and risk factors, especially those that are highly relevant to people in Indonesia.

What Is Fatty Liver?

Fatty liver happens when the liver stores too much fat. A small amount of fat in the liver is normal, but when fat makes up more than 5% of liver weight, it becomes a medical problem.

There are two main types:

1. Non-Alcoholic Fatty Liver Disease (NAFLD)

This type is not caused by alcohol. It is closely linked to lifestyle factors such as:

• Poor diet
• Lack of exercise
• Obesity
• Diabetes
• Cholesterol problems

NAFLD is the most common form of fatty liver in Indonesia.

2. Alcoholic Fatty Liver Disease (AFLD)

This type is caused by excessive alcohol consumption, which damages liver cells and leads to fat buildup.

Both types can become serious if ignored.

Main Causes and Risk Factors of Fatty Liver in Indonesia

1. Obesity, Especially Belly Fat

Obesity, particularly visceral fat (fat stored around the stomach area), is the biggest cause of fatty liver in Indonesia. This type of fat is harmful because it goes straight to the liver and triggers fat buildup.

Indonesia has seen a sharp rise in obesity due to:

• High-calorie diets
• Sugary drinks
• Fast food
• Lack of exercise

Why belly fat is risky:

• It increases inflammation.
• It sends more fat to the liver.
• It raises the risk of liver damage.

If you have a large waistline, your risk of fatty liver is significantly higher.

2. Type 2 Diabetes and Insulin Resistance

People with diabetes, especially type 2 diabetes, have a much higher risk of developing fatty liver. This happens because diabetes is linked to insulin resistance, a condition where the body cannot use insulin properly.

When insulin does not work well:

• Blood sugar rises.                
• The liver produces more fat.
• The body stores more fat in the liver.

Indonesia has one of the world’s fastest-growing diabetes rates, making this a major contributor to fatty liver.

3. Dislipidemia (Cholesterol Problems)

Dislipidemia is a condition where cholesterol levels are not balanced, especially when:

• Triglycerides are high
• HDL (”good” cholesterol) is low

These factors make the liver vulnerable to storing more fat than it can handle. Many Indonesians unknowingly struggle with dyslipidemia because it often has no symptoms until complications appear.

4. High-Fat and High-Sugar Diets

Diet plays a major role in fatty liver development. Many Indonesian foods are delicious but high in sugars, fats, and carbohydrates.

Examples include:

• Fried foods
• Meals cooked with a lot of oil
• Coconut milk dishes
• Sweet drinks
• High-carb snacks

Common eating habits that increase fatty liver risk:

• Drinking sweet beverages (soda, Sweet iced tea etc.)
• Frequent fried foods
• Eating large portions of rice
• Consuming little fiber (vegetables and fruits)
• Choosing fast food or processed foods

These habits increase lipogenesis, the process by which the liver creates and stores fat.

5. Sedentary Lifestyle

A sedentary lifestyle, spending long hours sitting, minimal walking, and little exercise, is becoming more common in Indonesia. Lack of movement slows the body’s ability to burn fat, leading to weight gain, insulin resistance, and liver fat buildup.

People who rarely exercise have a much higher risk of:

• Obesity
• Diabetes
• Metabolic syndrome
• Fatty liver

Even simple daily movement can make a big difference in reducing these risks.

6. Genetic Factors

Genetics can also play a role in fatty liver risk. Some people inherit genes that make their liver more likely to store fat.

One known genetic factor is the PNPLA3 gene variant, which is more common among Asian populations. Genetic risk does not guarantee fatty liver, but it increases sensitivity to lifestyle factors such as diet and weight gain.

7. Excessive Alcohol Consumption

Alcoholic Fatty Liver Disease (AFLD) is caused by drinking too much alcohol. Alcohol is toxic to the liver and interferes with the liver’s ability to break down fat.

People at risk include:

• Frequent heavy drinkers
• Individuals with a long history of alcohol use
• Those who binge drink

Even moderate alcohol intake, when combined with poor lifestyle habits, can harm the liver.

8. Idiopathic Cases (Unknown Factors)

Some people develop fatty liver even without the common risk factors. These idiopathic cases may involve mild metabolic issues, hormonal changes, or unrecognized genetic causes.

Why Fatty Liver Is a Growing Problem in Indonesia

Fatty liver is rising rapidly in Indonesia due to:

• Increasing obesity rates
• Higher sugar and fat consumption
• More sedentary lifestyles
• The growing diabetes and cholesterol epidemic

These lifestyle and metabolic issues make fatty liver a national health concern.

Early detection and lifestyle changes can prevent fatty liver from turning into something more serious.

How to Lower Your Risk of Fatty Liver

Good news, fatty liver is often reversible, especially in its early stages. Here are simple steps that can help protect your liver:

1. Maintain a Healthy Weight

Losing even 5-10% of body weight can significantly reduce liver fat.

2. Improve Your Diet

• Reduce sugary drinks.
• Limit fried and fatty foods.
• Eat more vegetables and whole grains.
• Choose lean protein (fish, chicken, tofu)

3. Exercise Regularly

At least 150 minutes of exercise per week can greatly improve liver health.

4. Manage Blood Sugar and Cholesterol

Regular check-ups can help detect problems early.

5. Limit Alcohol

Avoid or minimize alcohol to protect your liver.

Frequently Asked Questions

How to avoid fatty liver?

You can prevent fatty liver by living a healthier lifestyle. Try to lose weight slowly if you are overweight, eat more fruits, vegetables, whole grains, and lean protein, and cut down on fried foods and sugary drinks.

Exercise at least 30 minutes a day, avoid alcohol, and don’t smoke. Managing stress and checking your blood sugar and cholesterol regularly also helps protect your liver.

What are the signs of fatty liver?

Fatty liver often has no early symptoms. Some people may feel tired or experience mild pain in the upper right stomach.

An enlarged liver is sometimes found during a check-up. More serious symptoms like jaundice appear only in advanced stages.

What is the number 1 cause of fatty liver?

The biggest cause of fatty liver in Indonesia and worldwide is obesity, especially having too much belly fat. This is strongly linked to insulin resistance and metabolic problems.

Is it risky to have a fatty liver?

Yes. If not treated, fatty liver can lead to inflammation, scarring, cirrhosis, or even liver cancer.

It also increases the risk of heart disease. Early lifestyle changes can prevent these complications.

Take Care of Your Liver at Our International Hospital

Our hospital offers complete liver health assessments, including:

• Liver function blood tests
• Ultrasound imaging
• Metabolic and cholesterol evaluations
• Personalized treatment plans

If you are worried about fatty liver or want early screening, we are here to support your health journey. Protect your liver today; early action makes all the difference.