The Anxiety Loop: Why "Thinking Positive" Can't Fix a Gut Problem and How Nutrition Response Testing can Help/
- Justin Feasel
- 7 days ago
- 4 min read

Let’s be honest about your anxiety for a second.
You’ve probably done the work. You’ve sat on the therapy couch. You’ve filled out the CBT worksheets. You’ve practiced mindfulness until you’re blue in the face. Maybe you’re even on medication.
And yet, the "hum" is still there.
That low-level vibration of dread that hits you at 3:00 PM. The racing heart that wakes you up at 4:00 AM. The brain fog that makes simple decisions feel like climbing Everest.
You might be thinking, "I’m failing at therapy," or "My brain is just broken."
I have good news and bad news. The bad news is: You’ve been looking in the wrong place. The good news is: You aren't broken. You’re just inflamed.
If you have processed your trauma and reframed your thoughts but your body is still screaming, you aren't dealing with a psychological problem anymore. You are dealing with a biological one.
The Hardware vs. Software Problem
Think of your mental health like a computer.
Psychotherapy is the software. It updates your operating system, removes the viruses (trauma), and organizes your files (thoughts). It is absolutely essential.
Your body is the hardware. It’s the motherboard, the battery, and the fan.
If your hardware is overheating, filled with dust, or running on a dead battery, it doesn't matter how great the software is. The computer will crash.
For many people suffering from chronic anxiety, the issue isn't that they need to "think better." It’s that their brain lacks the raw chemical materials to remain calm.
You cannot cognitive-behavioral-therapy your way out of a Vitamin B deficiency. You cannot "breathe through" a gut that is reacting to a toxic food source.
The Gut-Brain Axis: It’s Not Just a Metaphor
Science has finally caught up to what holistic practitioners have known for decades: The road to the brain runs through the stomach.
The Vagus Nerve connects your gut directly to your brainstem. They are in constant communication. Furthermore, roughly 90-95% of your body’s serotonin (the happy/calm chemical) is made in your gut, not your head.
If your gut is inflamed—due to food sensitivities, parasites, bacteria, or toxins—it sends a distress signal up the Vagus nerve.
To your brain, that signal translates as: "DANGER. PANIC. RUN."
You feel this as anxiety. You look around your life for a "reason" to be anxious (work, money, relationships), but often, the trigger isn't in your schedule. It’s in your lunch.
Why "Eat Healthy" is Bad Advice
So, is the solution just to "eat healthy"?
No. In fact, generic health advice is often the enemy of anxiety recovery.
I see clients all the time who are "eating clean." They eat yogurt, spinach salads, and whole wheat toast.
But what if their body has a specific intolerance to casein (dairy)? That yogurt is acting like a neurotoxin.
What if they can't process oxalates? That spinach salad is causing systemic inflammation.
What if they have a gluten sensitivity? That whole wheat toast is destroying their serotonin production for the next 72 hours.
Guessing doesn't work. We need precision.
The Solution: Nutrition Response Testing® (NRT)
This is where we stop guessing and start asking your body what it actually needs.
Nutrition Response Testing (NRT) is a non-invasive system we use to analyze the body’s neurological reflexes. Instead of relying solely on blood work (which often comes back "normal" even when you feel terrible), we test the nervous system directly.
The body is an electrical system. When it encounters a stressor—like a food sensitivity, a heavy metal, or an immune challenge—the strength of the nervous system signal changes.
Through NRT, we can pinpoint:
The Stressor: Is it wheat? Is it mercury? Is it a tired thyroid?
The Deficiency: Does your nervous system need more Magnesium? More B12? A specific enzyme?
We then build a program designed specifically for your biology. No generic meal plans. Just exactly what your body needs to turn off the "danger" signal.
A Real-Life Example: The "Panic Attack" That Wasn't
I recently worked with a client who suffered from "treatment-resistant anxiety." She had panic attacks almost daily around 11:00 AM and 3:00 PM.
Therapy helped her cope when they happened, but it didn't stop them from coming.
Through testing, we found two massive physiological triggers:
Reactive Hypoglycemia: Her blood sugar was crashing mid-morning and mid-afternoon. When blood sugar drops fast, the body dumps adrenaline into the blood to compensate. Adrenaline feels exactly like panic.
Gluten Sensitivity: Her morning bagel was causing gut inflammation that fogged her brain for the rest of the day.
We didn't need to dig into her childhood to fix this. We adjusted her macronutrients to stabilize her blood sugar and removed the gluten.
In two weeks, the panic attacks stopped.
She didn't need more coping skills. She needed a different breakfast.
Is Your Anxiety Actually Biological? (The Checklist)
If you are wondering if you are hitting the "Chemical Ceiling," ask yourself these questions:
The "Morning Dread": Do you wake up with a racing heart or a pit in your stomach before you’ve even had a conscious thought? (This is often a cortisol spike).
The "Hangry" Factor: Does your mood swing wildly depending on when you last ate?
The Physical Side: Do you have bloating, gas, fatigue, or joint pain alongside your anxiety?
The Resistance: Do you feel like you are doing all the mental work, but your body just won't get on board?
The Next Step
If you checked any of those boxes, it might be time to look at the hardware.
Mental health is holistic. We need to treat the whole human. Continue your therapy. Keep journaling. But give your brain the biological support it needs to actually heal.
Don't let a vitamin deficiency or a food sensitivity run your life.



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