Blog Posts
Making the Connection between Gut Health and Serotonin
Hi everyone! Get ready for an enjoyable and slightly “technical” blog post where I’ll do my best to explain things at a basic level. Today, we’re diving into the fascinating connection between gut health and mental and emotional well-being. You might be surprised to learn that our gut has a significant influence on our mental health, so let’s explore this topic together.
The Surprising Connection:
I can already hear some of you saying, “But Aaron! I’ve always been told that my mental health is in my head, and medication helps balance the serotonin in my brain! I just need to learn better coping strategies.” Well, here’s some news for you: recent studies have revealed that approximately 95% of our serotonin levels are actually produced in the gut! Don’t just take my word for it; feel free to look up research from reputable institutions like Cal Tech and other research universities.
Understanding the Gut-Brain Axis:
To shed more light on this connection, let me provide some essential facts. The gut-brain axis serves as a two-way communication network, linking the enteric and central nervous systems. This network goes beyond anatomy and extends to endocrine, humoral, metabolic, and immune routes of communication. The autonomic nervous system, hypothalamic-pituitary-adrenal (HPA) axis, and gastrointestinal tract nerves all connect the gut and the brain. This intricate link allows the brain to influence intestinal activities and the gut to impact mood, cognition, and mental health.
The Role of Gut Microbiota:
Additionally, clinical, epidemiological, and immunological evidence suggests that our gut microbiota profoundly influences the gut-brain relationship. Enteric microbiota affects mental states, emotional regulation, neuromuscular function, and more. Furthermore, numerous mood disorders like anxiety, depression, and autism spectrum disorders have a strong and established link to the gut. Even irritable bowel syndrome/disease presents psychological co-morbidities related to gut alterations. It’s worth noting that research has shown that the composition of gut bacteria can impact fetal and neonatal neurological development, and diet also plays a role in the gut microbiome’s influence on cognitive function.
Understanding the Neurological Pathway:
Researchers have discovered that the neurological pathway involved includes the vagus nerve, the enteric nervous system, and the activity of neurotransmitters within the gastrointestinal tract. Neurologic modulation of afferent sensory nerves directly produces molecules that can act as local neurotransmitters, including GABA, serotonin, melatonin, histamine, and more. Are you starting to grasp the significance of this connection?
“Okay Aaron, enough! What can we do to help this issue?
Addressing the Issue:
Many clients often express their belief that they need antidepressants or anti-anxiety medications because their brain doesn’t produce enough serotonin. However, this is not necessarily true. So, what can we do about it? Here are some practical suggestions that have proven useful:
- Boost Serotonin Production: It’s important to note that serotonin cannot be directly obtained from food. However, consuming foods rich in tryptophan can enhance your serotonin production. It’s a common misconception that tryptophan makes you sleepy; instead, it plays a crucial role in serotonin production, a mood neurotransmitter that promotes relaxation. Tryptophan also supports the natural production of melatonin, aiding in sleep regulation.
- Incorporate Tryptophan-Rich Foods: Include foods that are rich in tryptophan in your diet. Some excellent sources include chicken, turkey, fish, and fruits like bananas, apples, and prunes. Please be careful on how much dairy you consume, as dairy is an inflammatory food that causes a lot of problems for people.
3. Exercise. When we exercise, our gut-brain axis communicates for our body to release tryptophan into the bloodstream, which decreases the amount of other
amino acids. In turn, this makes it easier for this tryptophan to reach the brain and put you in a better mood. Aerobic exercise such as swimming, riding a bike,
brisk walking, jogging, or hiking increases tryptophan levels in your bloodstream.
4. I would recommend taking a good probiotic. This helps to ensure a healthy balance of the good bacteria in the gut.
I hope this was helpful and informative!
~ Aaron Nicolaides, PhD, LCSW
Therapeuo Health – “Tackling physical and emotional pain”
Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6469458/