Lose weight: According to the study, carbonated water can promote obesity

Lose weight: According to the study, carbonated water can promote obesity

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Carbonated water increases appetite

Water has no calories. Nevertheless, the carbon dioxide contained in many drinks is said to promote obesity. At least that's what researchers at Birzeit University found. Because carbonic acid stimulates the appetite and leads to overeating.

Ensure adequate fluid intake

“Water is essential. Drink around 1.5 liters of liquid every day. Do you prefer water - with or without carbon dioxide, ”writes the German Nutrition Society (DGE) in its 10 rules for wholesome nutrition. According to a new study, however, it would be better to drink water without sparkling water, because carbon dioxide can obviously favor excess weight.

Relationship between carbonic acid and weight gain

Mineral water is one of the favorite drinks of the Germans. It shouldn't tingle too much: "Most Germans buy mineral water with a medium carbonation - also called a medium," according to the Stiftung Warentest website.

Carbonated drinks are also extremely popular in other European countries. That, among many others, could be one of the reasons why Europeans are getting fatter.

In a new Palestinian study, a clear connection between carbonic acid and weight gain has now been established.

The results of the study by scientists from Birzeit University in Ramallah were published in the journal Obesity Research and Clinical Practice Journal.

Appetizing hormone ghrelin

To get their results, the researchers led by Professor Johnny Stiban had divided rats into two groups, which were kept under the same conditions but received different drinks - with or without carbonation.
It was shown that the rodents who consumed carbonated drinks increased faster than the animals in the control group during the one-year study period.

The scientists also provide an explanation for this. According to a statement from the university, the rats supplied with sodas had increased levels of the hormone ghrelin in their bodies.

This also ensures that people get more appetite. For example, ghrelin is also responsible for why regular exercise is helpful when losing weight. Because during exercise, the appetizing hormone is reduced.

The experts also found that the fat levels of the liver were also significantly increased in the animals.

Tap water instead of carbonated drinks

After the rat experiment, 20 male students were tested for ghrelin levels after taking various drinks, thereby demonstrating the results of the study.

The values ​​of the appetizing hormone were also increased in the human study participants.

"The result of the study shows that carbon dioxide in soft drinks plays an important role in weight gain and the onset of obesity in male mammals due to the release of ghrelin and the associated stimulation of appetite," said the researchers.

However, the fact that soft drinks are often the cause of obesity is much more due to the enormously high amounts of sugar they contain.

Italian study showed a similar effect

However, the results of the Palestinian investigation are not entirely new. As reported by the “Frankfurter Allgemeine Zeitung” (FAZ), a study by Italian scientists already showed a similar effect in 2011.

René Csuk, professor of organic chemistry at the University of Halle-Wittenberg, said according to the newspaper: "However, what is happening is far more complex than these studies suggest."

According to the expert, it is known that "ghrelin levels have increased when carbonated water has been used, and it is also certain that the subjects who drank the carbonated water would consume more food afterwards."

However, it was not enough to conclude that one would stay thin if one did not use sparkling water. After all, ghrelin is just one of the many hormones involved in appetite regulation.

As the FAZ writes, ghrelin not only makes us hungry, it also makes us happier and also has a long-term effect that should not be underestimated.

Other relevant hormones such as leptin, glucagon, serotonin or cholecystoconin have not been tested.

In addition, only small effects were observed in both the Palestinian and Italian studies, and the number of subjects was very small at twenty and ten, respectively. (ad)

Author and source information

This text corresponds to the requirements of the medical literature, medical guidelines and current studies and has been checked by medical doctors.


  • Full text of the study

Video: What Happens To Your Body When You Stop Drinking Soda (September 2022).


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