Coffee and tea may contribute to a healthy liver, researchers say

tea

Surprise! Your morning cup of tea or coffee may be doing more than just perking you up before work.

An international team of researchers led by Duke-NUS Graduate Medical School (Duke-NUS) and the Duke University School of Medicine suggest that increased intake may reduce fatty liver in people with non-alcoholic (NAFLD).

Worldwide, 70 percent of people diagnosed with diabetes and obesity have NAFLD, the major cause of fatty liver not due to . It is estimated that 30 percent of adults in the United States have this condition, and its prevalence is rising in Singapore. There are no effective treatments for NAFLD except diet and exercise.

Using cell culture and mouse models, the study authors - led by Paul Yen, M.D., associate professor and research fellow, and Rohit Sinha, Ph.D of the Duke-NUS Graduate Medical School's Cardiovascular and Metabolic Disorders Program in Singapore - observed that caffeine stimulates the metabolization of lipids stored in and decreased the fatty liver of mice that were fed a high-fat diet. These findings suggest that consuming the equivalent of four cups of coffee or tea a day may be beneficial in preventing and protecting against the progression of NAFLD in humans.

The findings will be published in the September issue of the journal Hepatology.

"This is the first detailed study of the mechanism for caffeine action on lipids in liver and the results are very interesting," Yen said. "Coffee and tea are so commonly consumed and the notion that they may be therapeutic, especially since they have a reputation for being "bad" for health, is especially enlightening."

The team said this research could lead to the development of caffeine-like drugs that do not have the usual side effects related to caffeine, but retain its therapeutic effects on the liver. It could serve as a starting point for studies on the full benefits of caffeine and related therapeutics in humans.

In addition to Yen and Sinha, collaborators included Christopher Newgard, PhD, director of the Sarah W. Stedman Nutrition and Metabolism Center at Duke University School of Medicine, where the metabolomics analysis of the data was conducted.


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Provided by Duke University Medical Center
Citation: Coffee and tea may contribute to a healthy liver, researchers say (2013, August 17) retrieved 19 February 2019 from https://medicalxpress.com/news/2013-08-coffee-tea-contribute-healthy-liver.html
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Aug 19, 2013
The difference between a malodorous rotting bog and a healthy fragrant estuary is the throughput of water. Throughput of water can also flush contaminants and toxins from the human body. The reason coffee and tea are healthier that plain water is that they have been boiled.

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