Gut-Brain Connection in Kids

Austin Tchikatilov • July 6, 2026

The Gut-Brain Connection in Kids: How Nutrition, the Microbiome, and the Nervous System Shape Brain Development

The Gut and Brain Are Constantly Talking

When most parents think about supporting their child's brain development, they picture learning activities, speech therapy, exercise, or quality sleep.

Few realize that one of the biggest influences on brain development is happening inside the digestive tract.

The gut and brain communicate continuously through what scientists call the gut-brain axis—a sophisticated network connecting the nervous system, immune system, endocrine system, and trillions of microorganisms living in the intestines.

When this communication system is functioning well, children are more likely to experience:

  • Better attention
  • Improved emotional regulation
  • Healthy digestion
  • Stronger immune function
  • More balanced behavior
  • Better sleep
  • Improved motor development
  • Greater resilience to stress

When this communication network becomes disrupted, however, the effects can be felt throughout the entire body—not just the gut.

The Gut Is More Than a Digestive Organ

Many researchers now refer to the gut as the body's "second brain."

The digestive tract contains over 500 million neurons that communicate directly with the brain through the vagus nerve and autonomic nervous system.

Even more remarkable is that approximately:

  • 90–95% of serotonin
  • Around 50% of dopamine precursors
  • Significant amounts of GABA and other neuroactive compounds are produced or heavily influenced by gut bacteria.

This doesn't mean your intestines "make emotions," but it does mean that a healthy microbiome plays an important role in producing the building blocks needed for healthy brain chemistry.

Your Child's Gut Microbiome Helps Build the Brain

The gut microbiome consists of trillions of bacteria, fungi, viruses, and other microorganisms that live primarily in the large intestine.

These microbes help:

  • Train the immune system
  • Produce vitamins
  • Create short-chain fatty acids
  • Reduce inflammation
  • Protect the intestinal lining
  • Influence neurotransmitter production
  • Support healthy brain development

Early childhood is one of the most important periods for microbiome development.

Factors that may influence the microbiome include:

  • Birth method
  • Breastfeeding
  • Antibiotic exposure
  • Diet
  • Stress
  • Environmental toxins
  • Sleep
  • Physical activity

Research has consistently found differences in gut microbial composition in some children with neurodevelopmental conditions, including autism. However, scientists are still determining whether these differences are a cause, a consequence, or both. The microbiome is an exciting area of research, but it is not yet possible to attribute neurodevelopmental disorders to microbiome changes alone.

The Gut Barrier: Your Child's First Line of Defense

The intestinal lining acts as a highly selective filter.

Healthy intestinal cells allow nutrients to enter the bloodstream while preventing harmful substances from crossing into circulation.

When this barrier becomes damaged, intestinal permeability ("leaky gut") may increase.

Potential triggers include:

  • Chronic inflammation
  • Highly processed diets
  • Frequent antibiotics
  • Persistent stress
  • Certain infections
  • Some medications
  • Individual food sensitivities

Increased intestinal permeability has been associated with several autoimmune and inflammatory conditions. Researchers are also investigating its role in subsets of individuals with autism and other neurodevelopmental disorders, though this relationship remains an area of active study rather than established causation.

The Blood-Brain Barrier: Protecting the Developing Brain

Just as the gut has a protective barrier, the brain has one too.

The blood-brain barrier (BBB) protects the brain from toxins, inflammatory molecules, and pathogens circulating in the bloodstream.

When systemic inflammation increases, signaling molecules released by the immune system may influence blood-brain barrier function in susceptible individuals.

Scientists are studying whether altered BBB integrity contributes to certain neurological conditions, but this is a complex process with many contributing factors. When inflammation affects the developing brain, areas involved in movement, behavior, and cognition may be influenced.

Why Inflammation Matters

One of the biggest ways the gut influences the brain is through the immune system.

Approximately 70% of immune cells reside in gut-associated lymphoid tissue.

When the immune system becomes chronically activated, inflammatory signaling molecules called cytokines increase.

Excessive or prolonged inflammation has been linked to changes in:

  • Synaptic development
  • Neuroplasticity
  • Mitochondrial function
  • Brain energy production
  • Myelination
  • Neurotransmitter balance

Healthy immune regulation—not complete elimination of inflammation—is essential because inflammation also plays an important role in normal healing and defense.

Key Brain Regions Influenced by Gut-Brain Communication:

Frontal Cortex

The frontal cortex is responsible for:

  • Executive function
  • Decision-making
  • Emotional regulation
  • Attention
  • Impulse control
  • Planning
  • Social behavior

Inflammation, sleep disruption, poor nutrition, and chronic stress can all influence how efficiently these networks function.

Children struggling with attention, emotional regulation, or executive function may benefit from a comprehensive evaluation that considers multiple factors—including sleep, nutrition, movement, sensory processing, and nervous system regulation.

Cerebellum

The cerebellum does much more than coordinate movement.

It also helps regulate:

  • Balance
  • Coordination
  • Eye movements
  • Timing
  • Motor learning
  • Language
  • Emotional regulation
  • Cognitive processing

Neuroimaging studies have found cerebellar differences in some individuals with autism, although these findings vary and do not apply to every child. Because the cerebellum is highly responsive to movement-based learning, therapies that incorporate balance, coordination, eye movement training, and physical activity may support cerebellar function.

Basal Ganglia

The basal ganglia help regulate:

  • Movement initiation
  • Motor control
  • Habit formation
  • Motivation
  • Reward processing
  • Behavioral flexibility

Altered basal ganglia function has been implicated in conditions such as ADHD, obsessive-compulsive disorder, movement disorders, and some forms of autism. Supporting overall brain health through sleep, nutrition, physical activity, and appropriate therapies may help optimize these networks.

What About Gluten and Dairy?

This is one of the most common questions parents ask.

The answer is nuanced.

Gluten

Current evidence does not support gluten as a universal cause of autism or neurodevelopmental disorders.

However, some children may have:

  • Celiac disease
  • Non-celiac gluten sensitivity
  • Wheat allergy
  • Individual immune reactions

For these children, gluten exposure may contribute to gastrointestinal symptoms, inflammation, or behavioral changes.

Some studies have reported improvements in gastrointestinal symptoms—and in a subset of children, behavior—after a carefully supervised gluten-free diet, while other studies have found little or no benefit. Overall, the evidence is mixed, and gluten-free diets should not be recommended universally for all autistic children.

Dairy

Similarly, dairy is not harmful for every child.

However, some children may have:

  • Cow's milk protein allergy
  • Dairy intolerance
  • Lactose intolerance
  • Individual sensitivity to dairy proteins

In susceptible children, dairy may contribute to gastrointestinal discomfort or inflammation. Some families also report behavioral improvements after dairy elimination, but research findings remain inconsistent.

Because dairy is a major source of calcium, vitamin D, and protein for many children, elimination diets should ideally be supervised by a qualified healthcare professional to ensure nutritional adequacy.

Food Is Information

Food does much more than provide calories.

Every meal sends biochemical signals that influence:

  • Immune function
  • Hormone production
  • Brain energy
  • Mitochondrial health
  • Microbiome diversity
  • Inflammation
  • Neurotransmitter synthesis

Nutrient-dense whole foods support these systems, while diets high in ultra-processed foods, added sugars, and low fiber may negatively influence gut microbial diversity and metabolic health.

Nutrients That Support Gut and Brain Health

A research-supported nutrition plan often emphasizes:

✅ Colorful fruits and vegetables

✅ Healthy fats (especially omega-3 fatty acids)

✅ High-quality protein

✅ Fermented foods (when tolerated)

✅ Fiber-rich foods

✅ Zinc

✅ Magnesium

✅ Iron (when deficient)

✅ Vitamin D (if needed)

✅ Choline

✅ B vitamins

Any supplementation should be individualized based on a child's diet, medical history, and healthcare provider recommendations.

Movement Builds the Brain

Healthy brain development isn't only about food.

Movement stimulates:

  • Cerebellar development
  • Vestibular pathways
  • Vision
  • Proprioception
  • Motor planning
  • Neuroplasticity

Children benefit from activities such as:

  • Climbing
  • Crawling
  • Balance play
  • Jumping
  • Running
  • Outdoor exploration
  • Cross-body coordination
  • Eye tracking games

These experiences help strengthen the neural networks that support both motor and cognitive development.

A Nervous System-Centered Approach

At High Vibe Living Chiropractic, we believe lasting healing begins by addressing the whole child—not just isolated symptoms.

Our comprehensive approach may include:

  • Neurological assessment
  • Nervous system regulation
  • Pediatric chiropractic care
  • Functional nutrition guidance
  • Lifestyle counseling
  • Movement-based neurorehabilitation
  • Sleep optimization
  • Stress reduction strategies
  • Collaboration with your child's medical team when appropriate

Every child is unique, and there is no single food, supplement, or therapy that works for everyone. The goal is to identify and address the individual factors that may be affecting your child's health and development.

The Bottom Line

The gut and brain are deeply interconnected through the nervous system, immune system, hormones, and microbiome.

While gut health is not the sole determinant of neurodevelopmental outcomes, optimizing digestive health can be an important part of supporting a child's overall well-being. Research continues to explore how the gut microbiome, intestinal barrier, immune signaling, and nutrition influence brain development, behavior, and motor function.

By nourishing the gut with whole foods, encouraging healthy movement, prioritizing sleep, and supporting nervous system regulation, families can create an environment that promotes resilience and healthy development.

References

  • Sharon G, et al. The Central Nervous System and the Gut Microbiome. Cell. 2016.
  • Cryan JF, et al. The Microbiota-Gut-Brain Axis. Physiological Reviews. 2019.
  • Needham BD, et al. The Gut Microbiota and Neurodevelopment. Nature Reviews Gastroenterology & Hepatology. 2022.
  • Fasano A. Zonulin, Regulation of Tight Junctions, and Autoimmune Disease. Physiological Reviews. 2011.
  • Hsiao EY. Immune Dysregulation in Autism Spectrum Disorder. Current Opinion in Neurobiology. 2013.
  • Moayyedi P, et al. The Role of Diet in Functional Gastrointestinal Disorders and Autism Spectrum Disorder. Current Opinion in Gastroenterology. 2020.
  • National Institute of Mental Health. Autism Spectrum Disorder Research Updates.
  • American Academy of Pediatrics. Clinical reports on nutrition and autism spectrum disorder. 

Why Your Nervous System Is the Missing Link to Healing

By Austin Tchikatilov • June 28, 2026
When most people think about their health, they focus on symptoms. Fatigue, hormone imbalances, digestive issues, brain fog, anxiety, or recurring illness often seem like separate problems. But what if many of these challenges were connected by one common denominator? Your nervous system. The nervous system is the master control system of the body. It coordinates communication between your brain, immune system, hormones, organs, muscles, and every cell in your body. When it is balanced and adaptable, your body can heal, recover, and thrive. When it becomes overwhelmed by chronic stress, injuries, inflammation, poor sleep, or emotional strain, the body shifts into survival mode. The Stress Response and Its Impact on Health Your body was designed to handle short bursts of stress. However, modern life often keeps us in a constant state of fight-or-flight. When your nervous system is stuck in survival mode: Stress hormones like cortisol remain elevated. Immune function becomes dysregulated. Blood sugar becomes less stable. Sleep quality declines. Digestion slows down. Energy production becomes less efficient. Hormone balance suffers. Over time, this can contribute to symptoms such as fatigue, anxiety, burnout, brain fog, digestive issues, hormonal imbalances, and difficulty recovering from illness or injury. How Nervous System Regulation Supports Healing A regulated nervous system shifts the body into a state known as "rest, digest, and repair." In this state: The immune system can respond appropriately rather than overreacting. Hormones can communicate more effectively. Digestion and nutrient absorption improve. Inflammation decreases. Sleep becomes deeper and more restorative. Cellular energy production increases. In other words, healing becomes possible. 5 Simple Ways to Reset Your Nervous System The good news is that you can begin supporting your nervous system today. 1. Prioritize Breathwork Slow, controlled breathing signals safety to the brain. Try this: Inhale through your nose for 4 seconds. Exhale slowly for 6-8 seconds. Repeat for 5 minutes. 2. Get Morning Sunlight Exposure to natural sunlight within the first hour of waking helps regulate your circadian rhythm, cortisol patterns, and energy levels throughout the day. Aim for 5-15 minutes outdoors each morning. 3. Stabilize Blood Sugar Blood sugar fluctuations create stress on the nervous system. Focus on: Protein-rich breakfasts. Healthy fats. Fiber-rich vegetables. Limiting excess sugar and processed foods. 4. Move Your Body Daily Movement is one of the fastest ways to regulate the nervous system. Walking, strength training, yoga, balance exercises, and short bursts of high-intensity exercise can all improve nervous system resilience. 5. Improve Sleep Hygiene Sleep is when the brain and nervous system repair and reset. Start with: Consistent sleep and wake times. Reducing blue light exposure before bed. Keeping your bedroom cool and dark. Avoiding caffeine late in the day. The Bottom Line Your body is designed to heal, but healing happens most effectively when the nervous system feels safe and supported. If you've been struggling with fatigue, hormone imbalances, chronic stress, immune challenges, or simply feeling stuck in survival mode, it may be time to look beyond symptoms and focus on the system that controls them all. When you regulate the nervous system, you create the foundation for better energy, balanced hormones, a stronger immune system, and a healthier, more resilient life. At High Vibe Living Chiropractic, our mission is simple: Regulate. Heal. Thrive. Because true healing starts with the nervous system.

Finding Purpose in Everyday Life

By Austin Tchikatilov • March 21, 2023
Many times, people are led to believe that they must find some extravagant meaning or greater purpose in their life. Sometimes, it is beneficial to take a step back. Take a breath, and realize that a much simpler, less daunting approach is not only easier on the mind but can lead to that desired destination. It’s great to have big visions, dreams, and aspirations; but what are the smaller steps along your journey that will help shape you into your ideal self and connect you to your higher purpose. Focus on the little things. There is beauty in simplicity. It’s not going to look or feel the same for everyone and that’s perfectly fine. It can be as easy as setting an intention first thing in the morning to have as an anchor throughout your day. This intention could be a certain feeling you want to evoke within yourself, or a task you want to direct your energy towards that day. This task can relate to doing things for yourself and others. For example, maybe you want to give someone an unsolicited compliment or show your appreciation for a loved one, or be more present with your own thoughts, feelings, and emotions. By shifting your daily focus to this certain micro-goal, you may experience more joy and passion which can guide you towards your ultimate purpose in life. Take small steps and celebrate the little wins and notice how your bodymind reacts and how you feel more aligned with your spirit. By taking a step back and focusing on simplicity (while not completely forgetting the big picture), you will feel more fulfilled and empowered to share your unique gifts and experiences with others!

Life School

By Austin Tchikatilov • February 20, 2023
What if I told you that there was a school that we all go to every single day that has the potential to enhance our intelligence, level up our consciousness, and bring us the utmost peace, joy, and love? Sounds like a pretty enticing school right? Even for the people who don’t consider themselves “school people,” naturally we are all attending life school whether we choose to embrace it or not. Every single day we have a unique opportunity to learn more about ourselves, other people, and the world around us. The essential question is, are you bored and dozing off during class or are you curious and engaged with this wonderful teacher who is here to help us grow and evolve? Take a moment to reflect on your life recently. Have you just been going through the motions? Do you find yourself wrapped up in responsibilities and to-do’s? Are you waking up in the morning with a zest for life and excitement for what the adventure of the day may bring? I encourage you to do some digging and see what you find! Maybe you’d like to make some changes to your normal routines or work on building a new skill to help you achieve your goals. The beautiful thing about life school is that there are no grades or pressure to perform (unless you place that burden on yourself..). Life school is dynamic and ever-changing while providing us with many opportunities to learn important lessons through relationships, finances, work, and various challenges that will arise at times. If you are an open-minded student who is not chasing a final result but instead is focused on cherishing each step in the journey then you can begin to embrace the gift of life school and live a life inspired by gratitude and high vibes!

Building Your Tribe

By Austin Tchikatilov • January 23, 2023
The need to belong is one of the essential needs for all human beings. You know that feeling when you’re with a group of friends or family members and everyone is vibing and you feel safe, secure, and happy? This is a simple example of the visceral feelings you get when you are with your people and are genuinely enjoying the company, camaraderie, and deep, fulfilling conversations that often ensue. Obviously, your family and bloodline form the foundation of your tribe. When we are born, much of what we learn about the world and how things work is garnered by what our parents teach us, but also what we observe about human interactions through our innocent child-like lenses. Inevitably, we will take on some of our parents’ and peers’ own views, beliefs, and biases as we grow up which will, in part, influence the kind of people we choose to surround ourselves with. Now, once we start to do some deep identity digging (for most of us this occurs during adolescence) we can begin to understand who we truly are at our core by pondering the mysterious questions of life like, who am I? Why am I here? What do I want to manifest? After doing some soul searching and becoming clear with who YOU are, beyond any labels you may have been given by others or projections and pressures put on you by your parents; then you can mindfully choose who you want to be surrounded by, thus expanding your tribe. You see, once you feel strong and solid in your authentic self, it becomes easier to attract people that are vibrating at the same frequency. For instance, if you are operating from ego frequency the majority of the time which is characterized by things like fear, judgement, and scarcity; at a subconscious level you will attract people that have that same mindset since they are vibrating at a similar level. Remember, everything is energy and energy is everything. The law of attraction teaches us that “like” attracts “like.” Therefore, if we want to attract positive, loving, generous, and joyful people into our lives and expand our tribe, we must first expand these attributes within ourselves. Our outer reality is a reflection of our inner state of being. So, in essence, if you want to build your tribe up with honest, peaceful, strong, loving people; you need to start working on building these qualities up within yourself through various practices such as mirror work, affirmations journaling, meditation, yoga, prayer, etc. Then you will become more open and receptive to meeting people that can quite literally help change your life in amazing ways by offering new perspectives, ideas, and insights; and most importantly bask in the love that serves as the fuel for your growing high vibe tribe!

Becoming Attuned to the Wisdom Within

By Austin Tchikatilov • January 15, 2023
As human beings, we are all born with innate intelligence. We don’t have to tell our cells to divide, our tissues to grow, or our organ systems to develop and help keep us alive. These processes occur naturally because we are equipped with a divine intelligence that acts as a facilitator for our growth and development as well as a healer when we sustain injuries. This innate intelligence that our bodies carry enables us to be radically resilient to stressors that we endure throughout our lifetimes. Think of the last time you got a cut and it healed.. innate intelligence intervened. Think of the last time you were sick and your body spiked a fever to clear out unwanted pathogens… innate intelligence intervened… think of the last time you broke a bone or strained a muscle and it got better… again innate intelligence to the rescue. Clearly we possess an incredible amount of wisdom within, now the question is how do we consciously connect to our innate intelligence so that we can unlock our utmost potential to heal, love, and serve ourselves and others. Take a couple minutes before bed and lie down somewhere comfortable. Close your eyes and begin to scan your body from head to toe. Notice any sensations as you guide your awareness to different regions of your body. If you sense tightness or restrictions anywhere see if you can invite your breath and awareness into that space while imagining the release of any stuck/stagnant energy. You can also visualize a colorful light, maybe white, green, or blue, that courses through your body removing anything that no longer serves you. This is a powerful exercise that you can use to connect to your innate intelligence and intuition as certain thoughts, ideas or insights may come to you during this practice. The most important thing is that you are open to listening to the messages your body is trying to convey to you. The body is so intelligent that it gives us signs and symptoms when things are not working well. If we do not heed its warnings, this may turn into dis-ease as the message gets louder. However, if you check in with yourself on a regular basis through body scans, meditation, journaling, etc.; then you will truly become attuned to the wisdom within and effectively raise your vibrations!

New Year.. New Possibilities

By Austin Tchikatilov • December 31, 2022
With every new year comes feelings of hopes and aspirations. Often times, people set goals and resolutions in an attempt to improve their lives in some form or fashion. As 2022 comes to a close, you may feel called to take time by yourself to self-reflect on all that has happened to you as well as FOR you. As you mentally review the past year you probably can recall the momentous triumphs, saddening defeats, as well as new bonds formed with other people and previous bonds strengthened. I encourage you to perform this introspection with an open heart and mind. There is no need to judge yourself. No matter how crazy, difficult, or wonderful 2022 was for you, realize that it is ALL part of this beautiful thing we call life. Everything that has happened in your past has helped shape who you are today. Once you’ve done some digging; new thoughts and feelings may arise in your awareness... COOL, that is the first step! Once we become more in tune with ourselves through deep introspection, we can begin to identify parts of ourselves that we want to work on improving. Maybe you feel that this past year you’ve been very emotionally reactive and you’d like to become more zen amidst challenging circumstances. Or perhaps you find yourself looking for external validation from others and you’d like to start providing yourself words of affirmation. The most essential part of this process is that you ARE NOT overly critical of yourself and instead show yourself unconditional love and compassion. Instead of setting specific outcome goals for 2023, what if you set some specific intentions for what you want to cultivate and how you want to FEEL! The flow of life is dynamic and never static so what would you like to manifest and attract in 2023? 2023 will bring us many new opportunities, the key question is what direction do YOU want to go and what are the feelings/emotions that are paving that path? A road charged with fear, scarcity, and lack of passion will lead to a very different place than one of love, abundance, and gratitude. When we embody high vibration emotions, we tend to attract people, things, and opportunities of the same frequency which can lead to greater harmony in life. Be intentional about how you would like to show up in the world in 2023. You may not be able to control some of the obstacles thrown in your path, but you can ABSOLUTELY control how you choose to respond! By getting clear with your intentions now, you will not only be better equipped to handle difficulties as they arise this upcoming year, but you also will be more open and receptive to opportunities (gifts) that are aligned with your divine purpose!

Athletes and Mental Health

By Austin Tchikatilov • September 10, 2022
You ARE LIMITLESS

Welcome

By Austin Tchikatilov • October 7, 2021
Welcome to my playground! This site was created to help empower you to live vibrantly and I am here to share my love, wisdom, and experiences to help guide you on this journey we call life. No matter who you are or where you come from, you deserve to THRIVE during your existence on Mother Earth. The information and content that will be presented on this page is for your own educational purposes. Take what resonates with you and leave the rest. If you have specific questions about fitness, nutrition, performance, and biohacking then I i invite you to consult me personally via a discovery call. For those of you who are seeking a more intimate personal development platform, the High Vibe Tribe membership is available if you feel called to join. Lastly, remember to BE YOU, BE LOVE, and BE PRESENT!