The Surprising Relationship between Probiotics and Mental Health
Probiotics are living microorganisms that are beneficial for the human body. They are commonly found in fermented foods such as yogurt, kefir, kimchi, sauerkraut, and pickles.
While probiotics have been known to provide numerous health benefits including aiding digestion and boosting the immune system, recent studies have highlighted the surprising relationship between probiotics and mental health.
The Gut-Brain Axis
The gut-brain axis refers to the two-way communication system between the gut and the brain. The gut has its own nervous system called the enteric nervous system (ENS), which is often referred to as the “second brain.” The ENS communicates with the brain through the vagus nerve, which plays a crucial role in regulating mood, anxiety, and stress.
A healthy gut microbiome can positively impact the gut-brain axis, leading to improved mental health. Probiotics can help to increase the diversity and abundance of beneficial bacteria in the gut, which can lead to a healthier gut microbiome.
The Role of Probiotics in Mental Health
Studies have found that probiotics can be beneficial in treating mental health conditions such as depression, anxiety, and stress.
A study published in the Journal of Psychiatric Research found that a daily supplement of Lactobacillus and Bifidobacterium, two common probiotics, for eight weeks significantly reduced symptoms of depression and anxiety in participants compared to a placebo group. Another study published in the Journal of Clinical Psychiatry found that a probiotic supplement containing Lactobacillus helveticus and Bifidobacterium longum reduced symptoms of anxiety and depression in participants with irritable bowel syndrome (IBS).
Research has also found that probiotics can reduce stress levels. A study published in the International Journal of Neuropsychopharmacology found that a combination of Lactobacillus helveticus and Bifidobacterium longum reduced stress-induced cortisol levels in participants.
The Importance of Choosing the Right Probiotic
Choosing the right probiotic is crucial to see the mental health benefits. Different strains of probiotics can have different effects on the body and brain.
A study published in the Journal of Agricultural and Food Chemistry found that the probiotic Lactobacillus rhamnosus had a significant impact on GABA neurotransmitter levels in the brain, which can help to reduce anxiety and improve mood. Another study published in the journal Brain, Behavior, and Immunity found that the probiotic Bifidobacterium infantis reduced inflammation in the brain and improved symptoms of depression in participants.
Consulting with a healthcare professional can help individuals choose the right probiotic for their specific needs and health concerns.
The Bottom Line
Probiotics have numerous health benefits and their relationship with mental health is becoming increasingly important. The gut-brain axis plays a crucial role in regulating mood, stress, and anxiety, and a healthy gut microbiome can lead to improved mental health. Consulting with a healthcare professional and choosing the right probiotic can help individuals see the mental health benefits of probiotics.
