AI Summary Fatty liver disease occurs in at least half of people with type 2 diabetes, and a new diabetes diagnosis has been linked to nearly double the rate of cirrhosis, liver failure, or transplant.
Medically reviewed.
Diabetes and liver disease are closely linked: having type 2 diabetes raises your risk of nonalcoholic fatty liver disease (NAFLD/MASLD), and long-standing diabetes can contribute to liver inflammation, scarring (fibrosis), and cirrhosis. The relationship runs both ways — fatty liver disease can also raise your risk of developing type 2 diabetes. Most people notice no symptoms early on, which is why routine liver checks matter if you have diabetes, obesity, or insulin resistance.
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About the Connection
Diabetes mellitus is a metabolic disorder marked by chronic high blood sugar (hyperglycemia). It is one of the major risk factors for nonalcoholic fatty liver disease (NAFLD), a condition where excess fat builds up in the liver. Fatty liver disease occurs in at least half of people with type 2 diabetes.
In type 2 diabetes, the body's cells resist the effects of insulin, so insulin levels in the blood stay high. Insulin signals the liver to produce more fat, especially cholesterol, and that fat builds up inside liver cells, other organs, and blood vessels. This process, called insulin resistance, is a central driver of fatty liver disease.
The relationship runs both ways. Researchers describe three overlapping patterns: liver disease that develops because of diabetes, diabetes that develops because of liver disease (called hepatogenous diabetes), and liver disease that occurs alongside diabetes by coincidence. In one population-based study, a new diagnosis of diabetes was linked with close to double the rate of cirrhosis, liver failure, or liver transplant compared with people without diabetes.
Fatty liver disease usually causes no symptoms in its early stages, which is why routine screening matters for anyone living with diabetes, obesity, or insulin resistance.
Know Your Risk
Diabetes shares many of the same risk factors as fatty liver disease, and both conditions often go unnoticed together.
The Three-Way Relationship
The link between diabetes and liver disease is well established in medical research and falls into three overlapping categories.
Because the relationship is reciprocal, patients with type 2 diabetes are at high risk of developing fatty liver disease, NASH/MASH, fibrosis, cirrhosis, and even liver cancer — and patients with liver disease are at increased risk of developing type 2 diabetes.
The Connection in Both Directions
Even without a diabetes diagnosis, having fatty liver disease may increase your risk of eventually developing type 2 diabetes. Fat buildup and inflammation in the liver disrupt how the body processes insulin, creating a cycle that can push blood sugar levels higher over time.
If you already have both conditions, poorly controlled type 2 diabetes can accelerate fatty liver disease, pushing it toward inflammation (NASH/MASH), scarring (fibrosis), and eventually cirrhosis. Keeping blood sugar in a healthy range is one of the most effective ways to protect your liver.
Weight, metabolism, and lifestyle factors that contribute to both diabetes and liver disease often overlap and reinforce one another.
Addressing weight, blood sugar, and metabolic health together gives you the best chance of protecting your liver and managing diabetes at the same time.
Taking Action
Regular liver blood tests, and imaging such as ultrasound or FibroScan when recommended, help catch fatty liver disease early — often before symptoms appear. People with type 2 diabetes should be screened for advanced fibrosis because of their higher risk of progressive liver disease.
Achieving and maintaining a healthy body weight is considered the single most important step for preventing fatty liver disease, and weight loss is the most effective way to reverse it in people who are overweight or obese.
Keeping blood sugar levels in your target range reduces the insulin resistance that drives fat buildup in the liver. Work with your doctor on a diabetes management plan that also supports liver health.
Some medications used for type 2 diabetes and weight management, such as GLP-1 receptor agonists, may also benefit liver health. Talk with your doctor about whether your diabetes treatment plan could help your liver, and always ask before starting or stopping any medication.
Diet and Blood Sugar
A diabetic diet is one of the healthiest eating plans available, and it benefits your liver as much as your blood sugar. It is naturally rich in nutrients and low in fat and calories, built around fruits, vegetables, and whole grains. The right meal plan can improve blood glucose, blood pressure, and cholesterol, while helping you reach and maintain a healthy weight.
Because weight management is central to protecting your liver, small, consistent changes to what and how much you eat often matter more than any single food.
Foods to Build Your Plate Around
Common Questions
Yes, it can. Type 2 diabetes is one of the major risk factors for nonalcoholic fatty liver disease (NAFLD/MASLD), and fatty liver disease occurs in at least half of people with type 2 diabetes. Over time, fatty liver disease can progress to inflammation, scarring (fibrosis), and cirrhosis. Long-standing, poorly managed diabetes can add to this through insulin resistance, iron overload, oxidative stress, and inflammation. Obesity is a shared risk factor that strengthens the link between the two conditions.
Type 2 diabetes causes insulin resistance, which keeps insulin levels high in the blood. High insulin signals the liver to make more fat, especially cholesterol. That fat builds up inside liver cells, and also in other organs, arteries, and around the body. Extra fat in the liver can lead to inflammation and, over time, scarring of the liver (cirrhosis). In one population-based study, a new diabetes diagnosis was linked with nearly double the rate of cirrhosis, liver failure, or liver transplant compared with people without diabetes.
Yes. The link runs both ways. Fatty liver disease may play a role in the development of type 2 diabetes, even in people who do not have diabetes now. Chronic liver disease can also lead to hepatogenous diabetes, which is diabetes that develops because of liver disease. In some people, the two conditions appear together by coincidence because they share risk factors such as obesity. If you have liver disease, ask your doctor whether your blood sugar should be checked.
Probably not at first. Fatty liver disease usually causes no symptoms in its early stages. Later, some people notice fatigue, general weakness, or mild discomfort in the upper right abdomen. Because problems can be present well before you feel anything, routine checks matter if you have diabetes, obesity, or insulin resistance. Abnormal results on routine liver blood tests are often the first sign.
Ask your doctor, because the right schedule depends on your risk factors and any liver findings. In general, people with type 2 diabetes are recommended to be screened for advanced liver fibrosis because of their higher risk of progressive liver disease, even without symptoms. Screening can include liver blood tests and imaging such as ultrasound or FibroScan when your doctor recommends it. A liver specialist can help you plan follow-up.
A diabetic diet helps both. It is naturally rich in nutrients and low in fat and calories, and it is built around fruits, vegetables, and whole grains. Choose healthy carbohydrates such as legumes and low-fat dairy, and fiber-rich foods such as nuts, whole-wheat flour, and wheat bran. Eat heart-healthy fish such as salmon, mackerel, tuna, sardines, or bluefish at least twice a week, and avoid fried fish and fish high in mercury. Use healthy fats such as avocados, nuts, olives, and olive or canola oil in moderation, because all fats are high in calories.
Yes. Reaching and keeping a healthy body weight is considered the single most important step for preventing fatty liver disease. For people who are overweight or obese and already have fatty liver disease, weight loss is the most effective way to reverse its course. Keeping blood sugar in your target range also reduces the insulin resistance that drives fat buildup in the liver. Talk with your doctor about a weight and diabetes plan that supports your liver, and always ask before starting or stopping any medication.
Medical disclaimer: LiverDirectory provides educational information and a directory of providers. It does not provide medical advice, diagnosis, or treatment. Always consult a licensed physician regarding any medical condition.
