Fish oil may not be as healthful as you think, study finds

Fish oil is hailed for its plentiful health benefits. But new research suggests that the long-term consumption of fish oil or sunflower oil may increase the risk of fatty liver disease later in life.
fish oil supplements

Researchers say that lifelong intake of fish oil or sunflower oil could raise the risk of fatty liver disease in later life.

By studying rats, researchers found that lifelong intake of sunflower oil or fish oil led to changes in the liver that make the organ vulnerable to non-alcoholic steatohepatitis (NASH).

NASH is a more serious form of non-alcoholic fatty liver disease (NAFLD).

Study co-author José Luis Quiles, a professor ofphysiology working at the University of Granada in Spain, and colleagues recently reported theirfindings in The Journal of Nutritional Biochemistry.

It is estimated that around 20 percent of people in the United States who have NAFLD also have NASH, and the condition becomes more common with age.

NASH is characterized by a buildup of fat in the liver — which is not caused by alcohol consumption — inflammation, and liver cell damage. The liver damage that occurs in NASH can increase the risk of liver cirrhosis and liver cancer.

Some of the key risk factors for NASH include overweight and obesity, high blood pressure, highcholesterol, and type 2 diabetes, which are factors heavily influenced by diet.

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