The Secret Link Between Probiotics and Mental Health
Probiotics are live microorganisms that can provide various health benefits when consumed in adequate amounts. These beneficial bacteria can help support digestion, immunity, and even mental health. Yes, you read it right. Probiotics can have a significant impact on mental health.
What are Probiotics?
Probiotics are living microorganisms that can be found in certain foods and supplements. They are also known as “good” bacteria as they provide a host of benefits to the body, with the most recognized ones being digestive benefits and the improvement of the immune system. Probiotics come in many strains such as Lactobacillus, Bifidobacterium, Streptococcus, and many others, and each one has a unique function and benefit.
Probiotics and Mental Health
Although the gastrointestinal tract is where probiotics thrive and function, research has shown that the gut-brain axis (GBA) has an essential role in mental health. The GBA is a term used to describe the connection between the gut and the brain, and it operates with bi-directional communication between the central nervous system (CNS) and enteric nervous system (ENS).
Studies have shown that the gut and the brain communicate with each other through various channels such as the vagus nerve, hormones, neurotransmitters and immune system. When the gut is upset, it can send signals to the brain that might lead to adverse mental effects such as anxiety and depression. Similarly, when the brain is under stress, it can affect the gut’s function and cause digestive disturbances as irritable bowel syndrome (IBS) and ulcerative colitis (UC).
It has been reported that the balance of gut microbiota has an essential role in maintaining a healthy gut-brain axis. So, how do we maintain this balance? The answer is simple; through the use of probiotics.
Probiotics and Anxiety
Anxiety disorders are widespread and can significantly impact one’s quality of life. Researchers have found that certain probiotics strains can help reduce anxiety levels and alleviate symptoms of anxiety disorders.
The gut microbiota produces gamma-aminobutyric acid (GABA), a neurotransmitter that regulates many physiological and psychological processes, including anxiety. In a study, subjects taking Lactobacillus casei for four weeks had significant reductions in psychological distress and anxiety levels compared to those taking a placebo.
Probiotics and Depression
Depression is a severe mood disorder that affects millions of people worldwide. Research has indicated that there is a link between the gut microbiome and depression. A study found that patients with depression had an altered composition of the gut microbiome than healthy individuals, with lower levels of Bifidobacterium and Lactobacillus.
Recent studies have suggested that probiotics can have a protective effect against depression. In a study, patients with Major Depressive Disorder (MDD) taking a probiotic blend of Lactobacillus acidophilus, Streptococcus thermophilus, and Bifidobacterium bifidum, had a significant reduction in depressive symptoms compared to those taking a placebo.
Probiotics and Stress
Stress is a natural response to a perceived threat, and it’s a response that is vital to survival. However, when stress becomes chronic, it can have adverse effects on mental health. Studies have shown that probiotics can help reduce stress levels and improve the stress response.
A study found that students who took Lactobacillus casei supplements for eight weeks had a significant reduction in self-reported stress levels. Similarly, a study on mice found that treatment with the probiotic Bifidobacterium longum reduced stress-induced anxiety and depression-like behavior.
Conclusion
The role of probiotics in mental health is still in its early stages. However, there is growing evidence that suggests there is a connection between the gut microbiome and mental health. Probiotics, with their role in
