Coffee can improve digestion, prevent liver disease: Study

A recent clinical study has found positive effects of coffee on digestion and the gut, and protects against common digestive complaints such as gallstones as well as certain liver diseases.
Coffee is associated with gastric, biliary, and pancreatic secretions all necessary for the digestion of food. (Shutterstock)
Coffee is associated with gastric, biliary, and pancreatic secretions all necessary for the digestion of food. (Shutterstock)
Published on Jan 24, 2022 10:11 AM IST
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ANI | | Posted by Parmita Uniyal

A recent clinical study has found positive effects of coffee on digestion and the gut, and it protects against common digestive complaints such as gallstones as well as certain liver diseases.

The study has been published in the 'Nutrients Journal'.

The review of 194 research publications suggested that moderate coffee consumption (defined by EFSA as 3-5 cups per day) was not found to generate harmful effects on the various organs of the digestive tract.

Two areas of particular interest emerging from the research are the association between coffee and a reduced risk of gallstones and the evidence linking coffee consumption with a reduced risk of pancreatitis, although more research is still needed.

ALSO READ: Amazing health benefits of drinking coffee

On its journey through the gastrointestinal tract, coffee has three main impacts:

1. Coffee is associated with gastric, biliary, and pancreatic secretions all necessary for the digestion of food. Coffee was found to stimulate the production of the digestive hormone gastrin; and hydrochloric acid, present in gastric juice - both of which help break down food in the stomach. Coffee also stimulates the secretion of cholecystokinin (CCK), a hormone that increases the production of bile, also involved indigestion.

2. Coffee appeared to be associated with changes in the composition of gut microbiota. In the reviewed studies, coffee consumption was found to induce changes in the composition of the gut microbiota, mainly at the population level of Bifidobacteria - a ubiquitous inhabitant of the gastrointestinal tract.

3. Coffee is associated with colon motility - the process by which food travels through the digestive tract. The data reviewed suggested that coffee may stimulate motility in the colon as much as cereals, 23 per cent more than decaffeinated coffee or 60 per cent more than a glass of water and it may be linked to a reduced risk of chronic constipation.

The latest research also strongly supported the protective effect of coffee against liver diseases, including hepatocellular carcinoma - one of the most common types of liver cancer.

Despite the evidence to suggest coffee consumption may support the first stages of digestion, most data did not support the finding that coffee had a direct effect on gastro-oesophageal reflux. Instead, this is a combined or additive effect of other risk factors such as obesity and a poor diet.

The new review was conducted by Astrid Nehlig, Ph.D., Emeritus Research Director at the French National Institute of Health and Medical Research (INSERM).

Nehlig commented, "Contrary to some assumptions, coffee consumption is not overall linked to bowel or digestive problems. In some instances, coffee has a protective effect against common digestive complaints such as constipation. Emerging data also indicate there may be an association with improved levels of gut bacterial groups such as Bifidobacteria which have recognised beneficial effects. Although additional data will be needed to understand coffee's effects throughout the digestive tract, this is an extremely encouraging place to begin."

This story has been published from a wire agency feed without modifications to the text. Only the headline has been changed.
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