Can probiotics help improve mood?

Research shows that probiotics are not only good for the digestive system but also have the effect of improving mood, dispelling stress, reducing depression and fighting anxiety disorders.

In addition to improving gut health, probiotics may also indirectly enhance brain function.
The gut is considered the body's "second brain" because of its ability to produce many of the same neurotransmitters as the brain, such as serotonin, dopamine and gamma-aminobutyric acid, all of which play important roles important in mood regulation. In fact, it is estimated that up to 90% of serotonin is made in the digestive system.
Research shows that the gut and brain have an intimate connection, known as the gut-brain axis. The two are linked via biochemical signaling in the nervous system in the gastrointestinal tract, known as the enteric nervous system, and the central nervous system (including the brain). The main communication connection between the brain and the intestines is the vagus nerve, the longest nerve in the body.
Brain-gut axis plays a key role in helping to explain the phenomenon of neuropsychiatric disorders and digestive disorders co-occurring in the same patient. Accordingly, intestinal bacteria are considered to be important agents in brain-gut interactions, through nerves, immune system and metabolism. Therefore, supplementation with the appropriate strains of probiotics has the potential to positively impact neurological function of the body.
New studies on the brain-gut relationship also contribute to clarifying the mechanism of action from the brain to the gut, and vice versa. More specifically, the effect from the brain to the intestines and vice versa will rely on substances that are responsible for immunity, transmission produced by the microbiota (this microbiome includes billions of bacteria with more than 1000 types). . This mechanism leads to brain abnormalities (such as depression, anxiety disorders...) affecting the gut microbiota. Conversely, problems related to the gut microbiome will also lead to neurological diseases, with manifestations of anxiety, stress, mood swings,...
On the other hand, what affects sugar The gut will often affect the brain and vice versa. When your brain senses a problem and has a fight-or-flight response, it sends a warning signal to your gut. That's why stress can cause digestive problems like bloating or stomach upset. Similarly, gastrointestinal problems such as irritable bowel syndrome (IBS), Crohn's disease or chronic constipation are associated with an increased risk of anxiety or depression.
Brain-gut axis may interact in other ways. For example, your gut helps regulate appetite by telling your brain when you should stop eating. About 20 minutes after eating, the gut microbiome produces appetite-suppressing proteins, coinciding with the time when the body normally begins to feel full.

Probiotics not only support a healthier gut, but also help the brain function better.
Research shows that probiotics improve mood and cognitive function, and reduce stress and anxiety disorders. Trial results demonstrate that probiotic supplementation is associated with more stable brain function. Another study found that people who were supplemented with probiotics on a regular basis experienced less anxiety and depression than those who did not.
Study concludes benefits of probiotics for mood improvement and anti-anxiety disorder opening a potential therapeutic avenue for neuropsychiatric diseases, making it easier for doctors in regimen adjustment. On the other hand, it is also easier for patients to comply with nutritional changes to maximize the effectiveness of treatment.
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Reference source: health.harvard.edu