The Gut and Psychology Syndrome (GAPS) diet helped pull me out of nervous system freeze and burnout. It cuts out sugar (except for honey and fruit), grains, starches, seed oils, most dairy, processed foods, beans, soy, corn, alcohol and caffeine. It focuses bone broth, animal fats, low starch veggies and fermented foods.
I followed it for about five months, not because I struggled with obvious digestive issues, but because my overall health was starting to decline in more subtle ways. My nervous system was keeping my body in a chronically stressed state, and it was beginning to show up as symptoms.
My usual self care practices that worked in the past: meditation, breath work, exercise, sunlight, plenty of sleep and a home cooked healthy meals were not enough to balance my nervous system or improve my symptoms.
The biggest benefit of GAPS for me was how powerfully it stabilized my blood sugar and consistently fed my microbiome in a way that favored beneficial bacteria over disruptive and inflammatory ones.
Even though I ate what most people would consider “healthy” before GAPS, there were still hidden stressors. One example was cheese, a food that’s mostly fat and low in sugar, but can still raise insulin in some people and quietly destabilize blood sugar.
Taking out starch like potatoes and tapioca flour also seemed to help.
Why It Worked for My Whole System
GAPS supported far more than my gut. It had a stabilizing effect on my liver, thyroid, adrenals, and nervous system as a whole.
For people who already work hard on their mental health, emotional awareness, and personal growth and physical self-care, getting the right support from diet can be the missing piece.
Not in the sense of eating “perfectly” or obsessively, but in understanding how food interacts with your body and either creates stability or adds chaos with each choice. This post will help you understand how to make better choices for your body.
This Isn’t About Following GAPS
This isn’t a post about how great the GAPS diet is, because it’s definitely not for everyone.
What is worth paying attention to are the principles behind why it worked so well for me: blood sugar balance, reduced inflammatory load, and consistent support for the gut–brain–nervous system connection.
Those principles can be adapted to many different ways of eating. And learning from them may help you shape a diet that actually supports your nervous system rather than quietly pushing it further into stress.
The connection between diet and the nervous system
Most people think of diet as something that affects body weight or digestion. But your food choices influence something much deeper: the state of your nervous system.
What you eat can determine whether your body feels safe, grounded, and regulated, or anxious, inflamed, wired, and overwhelmed.
The nervous system and nutrition are inseparable. Every bite of food sends signals that shape your stress response, brain chemistry, inflammation levels, hormone balance, and even your experience of safety.
How what we eat influences how we feel, think, perceive, react and navigate stress. This is why diet is an important part of your nervous system support plan.
A root cause of anxiety, which is thought to be mental or psychological, can be purely physical, caused by blood sugar swings or inflammation.
Diet could provide a lot of emotional support as your gut and physiology stabilize.
And diet got me out of freeze after a few months. Here’s why…
The Gut–Brain Axis (your communication highway)
The gut and brain constantly send signals back and forth via the vagus nerve, neurotransmitters, the immune system/hormones and gut microbes (the microbiome).
What you eat shapes: how calm or reactive your system is, whether the vagus nerve is activated and how easily you drop into or out of fight/flight or freeze
Your gut trains your nervous system every single day.
Some examples:
Warm, broth-based, easy to digest meals signal safety which leads to parasympathetic activation. Hot and well cooked meals are particularly good for the freeze state.
Processed or sugary foods trigger blood sugar spikes which activate the sympathetic nervous system (fight or flight).
Fermented foods in some people, can increase histamine, which can overstimulate sensitive systems.
Your brain chemistry comes from food
When the diet lacks nutrients like vitamins or minerals, or when digestion is impaired, neurotransmitter production drops, making your nervous system more anxious, fatigued, overwhelmed or stuck in freeze.
My free mineral guide gives food sources and recipes for minerals that help build nervous system resilience and neurotransmitters. Download it for free here.
Blood Sugar Stability = Nervous System Stability
The nervous system reads blood sugar swings as danger when sugar drops and cortisol goes up to regulate it. Low blood sugar is the result of skipping meals or eat meal that spike your blood sugar.
Symptoms of blood sugar imbalance is 3 AM wake-ups, anxiety, pounding heart, irritability, nervous system instability (easily stressed and overwhelmed).
Balanced meals from the GAPs diet regulate the stress response with blood sugar-balancing animal protein, healthy fats, low starch veggies, broth and slow carbs (don’t spike blood sugar) like pumpkin, carrots, zucchini and squash.
These foods are typically well cooked in soups or stews, which makes them much easier to digest and assimilate.
Things that trigger blood sugar imbalance are skipping meals, eating sweets/fruti or simple carbs (bread/rice/pasta) alone, caffeine on empty stomach and ultra-processed foods.
Inflammation Creates Nervous System Irritation
Inflammation is one of the biggest drivers of nervous system overactivation.
When the body is inflamed, the nervous system reads the internal environment as unsafe. That constant low-grade threat signal makes it much harder to stay regulated, resilient, or calm, even when nothing external is “wrong.”
Common Sources of Food-Driven Inflammation
Inflammation from food can come from many places, including:
- Seed oils (canola, soybean, sunflower)
- Refined sugars
- Highly processed foods
- Excess caffeine
- Alcohol
- Individual food sensitivities
- Histamine overload if sensitive
These inputs don’t just affect digestion, they directly influence nervous system tone.
What Inflammation Does to the Nervous System
As inflammation increases, people often notice:
- Anxiety or internal agitation
- Irritability
- Brain fog
- Heightened sensitivity to stress
- Freeze or collapse states
It’s a biological response to an overwhelmed internal environment.
Why “Healthy” Diets Aren’t Always Accessible
An anti-inflammatory diet, often described as Mediterranean-style eating with fish, lean protein, olive oil, and colorful fruits and vegetables, can be very calming for the nervous system.
But for people with digestive issues, following a traditionally “healthy” diet isn’t always possible. Food reactions, bloating, histamine responses, or gut pain can make even nutrient-dense foods feel unsafe.
What Makes GAPS Anti-Inflammatory
What makes the GAPS diet anti-inflammatory isn’t restriction for the sake of restriction. It removes foods that irritate the gut lining and feed disruptive or inflammatory bacteria.
By lowering irritation at the gut level, inflammation decreases, and the nervous system has a chance to settle.
A Less Restrictive Option
You don’t have to follow GAPS to reduce inflammation.
Many people benefit from removing the most common inflammatory foods for about 30 days, then reintroducing them one at a time to see how their body responds.
Foods most commonly associated with inflammation include:
- Gluten
- Dairy
- Nightshades (tomatoes, potatoes, peppers, eggplant)
- Corn
- Soy
- Processed and sugary foods
- Sugar
- Caffeine
- Alcohol
How you eat sends a message to your nervous system
Eating itself is a behavioral cue to the nervous system. When meals are warm, consistent (no skipping meals), nutrient dense, calm and slow the body feels like “I have enough, I am safe.”
When food is: rushed, inconsistent, cold, raw, sugary or eaten in over stimulating environment the nervous system gets the message “I must be in danger.”
This is why warm, grounding soups, stews, and broth are foundational in regulating both trauma and physiology. And a pivotal part of the GAPS diet.
Feeling fear and misery about what you are eating sends a very strong message to the nervous system.
⭐ Things that Calm and regulate:
- warm meals
- stable blood sugar
- adequate protein
- minerals (magnesium, sodium, potassium, calcium)
- broth + gelatin
- omega-3 fats
- histamine load based on individual tolerance
- predictable meal timing
Things that activate Fight/Flight
- Caffeine (especially on empty stomach)
- sugar crashes
- seed oils
- histamines when intolerant
- nutrient deficiencies
- dehydration
Things that trigger Freeze
- skipping meals
- under-eating
- chronic gut inflammation
- low minerals
- low thyroid activation
Food is one of the most powerful and underutilized tools for nervous system regulation.
Every meal is an opportunity to signal safety, nourishment, and stability or stress, depletion, and overwhelm.
When you understand the connection between diet and the nervous system, you can use food intentionally to support calm, clarity, resilience, and deepen healing that has stalled with nervous system interventions or protocols only.
