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Anxiety can be controlled using probiotics to keep the gut bacteria under control
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  • Anxiety can be controlled using probiotics to keep the gut bacteria under control

Anxiety can be controlled using probiotics to keep the gut bacteria under control

Press Trust of India • May 23, 2019, 14:06:10 IST
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However, this is an observational study and there are a few limitations that prevent further studies.

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Anxiety can be controlled using probiotics to keep the gut bacteria under control

Regulating gut microorganisms by using probiotic and non-probiotic food and supplements may help people alleviate their anxiety levels, a review of studies suggests. Anxiety symptoms are common in people with mental diseases and a variety of physical disorders, especially those related to stress, according to the study published in the journal General Psychiatry. Previous studies have shown that as many as a third of people will be affected by anxiety symptoms during their lifetime. Research has indicated that gut microbiota — the trillions of microorganisms in the gut which perform important functions in the immune system and metabolism by providing essential inflammatory mediators, nutrients and vitamins — can help regulate brain function through something called the “gut-brain axis.” [caption id=“attachment_6689221” align=“alignnone” width=“1280”]Image credit: Wikipedia Representational image. Credit: Wikipedia[/caption] Recent research also suggests that mental disorders could be treated by regulating the intestinal microbiota, but there is no specific evidence to support this. Researchers from Shanghai Jiao Tong University School of Medicine in China set out to investigate if there was evidence to support the improvement of anxiety symptoms by regulating intestinal microbiota. They reviewed 21 studies that had looked at 1,503 people collectively. Of the 21 studies, 14 had chosen probiotics as interventions to regulate intestinal microbiota (IRIFs), and seven chose non-probiotic ways, such as adjusting daily diets. Probiotics are living organisms found naturally in some foods that are also known as “good” or “friendly” bacteria because they fight against harmful bacteria and prevent them from settling in the gut. Overall, 11 of the 21 studies showed a positive effect on anxiety symptoms by regulating intestinal microbiota, researchers said. More than half (52 percent) of the studies showed this approach to be effective, although some studies that had used this approach did not find it worked, they said. Of the 14 studies that had used probiotics as the intervention, more than a third (36 percent) found them to be effective in reducing anxiety symptoms, while six of the remaining seven studies that had used non-probiotics as interventions found those to be effective — a 86 percent rate of effectiveness. Some studies had used both the IRIF (interventions to regulate intestinal microbiota) approach and treatment as usual. In the five studies that used treatment as usual and IRIF as interventions, only studies that had conducted non-probiotic ways got positive results, that showed a reduction in anxiety symptoms. Non-probiotic interventions were also more effective in the studies that used IRIF alone. In those studies only using IRIF, 80 percent were effective when using non-probiotic interventions, while only 45 percent were found to be effective when using probiotic ways. [caption id=“attachment_6689241” align=“alignnone” width=“1280”]image credit: Pexels image credit: Pexels[/caption] The researchers said one reason that non-probiotic interventions were significantly more effective than probiotic interventions was possible due to the fact that changing diet (a diverse energy source) could have more of an impact on gut bacteria growth than introducing specific types of bacteria in a probiotic supplement. Since some studies had involved introducing different types of probiotics, these could have fought against each other to work effectively, and many of the intervention times used might have been too short to significantly increase the abundance of the imported bacteria. Most of the studies did not report serious adverse events, and only four studies reported mild adverse effects such as dry mouth and diarrhoea. This is an observational study, and as such, cannot establish a cause. The authors acknowledge some limitations, such as differences in study design, subjects, interventions and measurements, making the data unsuitable for further analysis. “We find that more than half of the studies included showed it was positive to treat anxiety symptoms by regulation of intestinal microbiota,” researchers said.

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Biology Mental health stress Microbiology Chemistry bacteria anxiety micro organisms supplements mental disorders probiotics Gut Health non probiotic
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