Non-Alcoholic Fatty Liver Disease May Lead to a Higher Risk of Dementia

Non-alcoholic fatty liver disease NAFLD the doctor is holding the sign.If you are one of the many adults in the United States who has the non-alcoholic fatty liver disease (NAFLD), there’s a higher chance you’ll develop dementia down the road.

A study published in Neurology found that people with a buildup of fat cells in the liver caused by NAFLD were more likely to develop dementia than those without the disease. If you have NAFLD, it’s important to be aware of this increased risk and take steps to protect your brain health. Talk to your doctor about ways to lower your risk for dementia, including following a healthy diet and exercising regularly.


According to the World Health Organization, non-alcoholic fatty liver disease is a major public health problem that affects up to 25% of people worldwide. NAFLD is the most common chronic form of liver disease and is often asymptomatic, meaning that many people don’t know they have it.

The leading cause of NAFLD is an excess of fat in the liver. This can be due to various factors, including obesity, insulin resistance, high blood pressure, and diabetes. In a small percentage of people, NAFLD can lead to liver inflammation or damage.

While NAFLD is not currently curable, some treatments can help improve symptoms and prevent disease progression. With early diagnosis and treatment, many people with NAFLD can live long and healthy lives.

For the study, researchers analyzed 30 years of national Swedish patient registry records to find 2,898 people 65 and older who were diagnosed with non-alcoholic fatty liver disease. An additional 28,357 people without the disease were also identified and matched for age, sex, and city of residence at the age of diagnosis.

It was found that after five years of follow-up, 145 people (5%) with non-alcoholic fatty liver disease were diagnosed with dementia compared to 1,291 people (4.6%) without liver disease.

Cardiovascular risk factors, including high blood pressure and type 2 diabetes, were accounted for. Researchers found that compared to people without liver disease, people with non-alcoholic fatty liver disease had a 38% higher rate of dementia overall.

When researchers specifically looked at vascular dementia caused by inadequate blood flow to the brain, people with non-alcoholic fatty liver disease had a 44% higher rate than people without liver disease. People with liver disease and heart disease had a 50% greater chance of dementia, and those with liver disease and stroke had a 2.5 times greater risk. Researchers did not find a higher rate of Alzheimer’s disease.

These results highlight the possible need for targeted treatment of liver disease and co-occurring cardiovascular disease to help reduce the risk of dementia.

Healthy Liver and Brain Function

As one of the most important organs in the human body, the liver works 24 hours a day to produce and process many of the chemicals the body requires. It processes over 500 functions, including hormone production, bile secretion, and converting sugars into glycogen.


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While some degree of cognitive decline is nearly inevitable as you age, this study shows how other factors can take a toll on the ability of the brain to function at peak potential. This can affect memory, concentration, and overall brain function.

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Author Bio

Sarah began her interest in nutritional healing at an early age. After going through health problems and becoming frustrated with the conventional ways doctors wanted to treat her illness (which were not working), she took it upon herself to find alternative treatments. This led her to revolutionize her own diet to help her get healthier and tackle her health problems. She began treating her illness by living a more balanced lifestyle through healthy food choices, exercise and other alternative medicine such as meditation. This total positive lifestyle change led her to earn a diploma in Nutritional Therapy from Health Sciences Academy in London, England. Today, Sarah enjoys helping others by teaching healthy lifestyle changes through her personal consultations and with her regular contributions to the Doctors Health Press. Also, passionate about following her dreams in life, Sarah moved to France and lived in Paris for over 5 years where she earned a certification in beadwork and embroidery from Lesage (an atelier owned by Chanel). She then went on to be a familiar face sitting front row and reporting from Paris Fashion Week. Sarah continues to practice some of the cultural ways of life she learned while in Europe. They enjoy their food, and take the time to relax and enjoy many of life’s little moments. These are life lessons she is glad to have brought back home with her.