Drinking a beer a day is good for gut health, study says | Health

Portuguese researchers found that the drink contributes to increasing the diversity of good bacteria in the region
Luiz Felipe SC / Unsplash

Portuguese researchers found that the drink contributes to increasing the diversity of good bacteria in the region

Drinking a lager beer a day is good for your health. According to a study published in the journal Journal of Agricultural and Food Chemistry
the habit increases the number of good bacteria in the gut, which could reduce the risk of developing heart disease and type 2 diabetes.

It is not news that the composition of the gut microbiome affects our health. In the new study, researchers at Universidade NOVA de Lisboa in Portugal sought to understand whether moderate beer consumption could increase the diversity of gut bacteria. This has already been suggested, but not proven, by previous work.

To test this hypothesis, they performed a double-blind, randomized study with 19 healthy men, aged 23 to 58 years. Participants were divided into two groups that drank 330 ml of alcoholic or non-alcoholic beer with dinner every day for a month. The volunteers were instructed not to change what they ate or drank or the way they exercised. There was no control group.

The results showed that after that period, both groups had a 7% increase in the variety of bacteria in the gut and in the level of fecal alkaline phosphatase, a measure of gut health. In addition, there was no difference in the volunteers’ weight, fat mass or cholesterol levels.

According to the researchers, lower bacterial diversity in the gut has been associated with diabetes and cardiovascular disease. Therefore, its increase would have the opposite effect.

The beneficial effect of beer on the microbiome – the collection of bacteria and fungi that live inside us – is thought to be associated with the polyphenols and microorganisms that facilitate its fermentation. Polyphenols are highly antioxidant micronutrients found naturally in plants, including hops, used in beer. Beer is the only source of hop polyphenols in the human diet. This ingredient is used by the industry to give the beverage its aroma and bitterness.

Although the study only looked at lager, all types of beer are expected to have the same effect on microbiomes. Beers with higher amounts of yeast, such as unfiltered, are believed to have an even greater effect.

As the result was also observed in non-alcoholic beers, the researchers recommend that people opt for this option. According to them, several studies show that there is no safe level of alcohol consumption, since a low intake already increases the risk of diseases, such as some types of cancer.

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