Sarah M. from Des Moines, Iowa
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Your Food Reactions Aren't "Just Sensitive Stomach." They're Immune Dysregulation — Discover the Real Drivers
Backed by Actual Lab Data, Not Guesswork. IgG Food Panels. Gluten Zoomer. Leaky Gut. Microbiome. Immune Markers. Cross-Reactivity. We measure all of it.
Food Reactions
Sensitivity Labs
Healing NutritionFind Out If You Qualify For Our Functional Food Sensitivity Protocol
Do You Experience Any Of These Food Sensitivity Symptoms?
Select every statement that applies to you. Your severity grade updates below as you check boxes.
Why Conventional Medicine Is Failing Food Sensitivity Sufferers
You were told your allergy tests are 'negative' and handed an elimination diet. Year after year, the reactions expand — and nobody ever tested your gut-immune function.
Food sensitivities are a gut-immune issue
Leaky gut and immune dysregulation cause your reactions to expand over time. Healing the gut lining restores tolerance to foods you've been avoiding.
Avoiding Foods, Not Healing the Gut
Elimination diets remove triggers but never repair the leaky gut and immune dysregulation causing reactions in the first place.
Standard Allergy Tests Miss Sensitivities
Standard IgE tests only catch immediate allergies. IgG food sensitivities, gluten zoomers, and leaky gut are rarely tested.
Leaky Gut Drives Expanding Reactions
A damaged gut lining lets food proteins into circulation, triggering immune reactions to more and more foods over time.
The System Misses the Real Drivers
Standard panels check basic IgE alone — skipping IgG food panels, gluten zoomers, leaky gut markers, and microbiome testing.
The System Is Not Built to Heal Food Sensitivities
Symptom Management, Not Root Cause Resolution
You're handed an elimination diet. Year after year reactions expand and nobody asks why your gut is reacting to everything.
Standard Tests Miss Sensitivities
Standard IgE tests only catch immediate allergies, skipping IgG food panels, gluten zoomers, and leaky gut markers that reveal true sensitivities.
Leaky Gut Is Never Tested
A damaged gut lining is the root cause of expanding food reactions — yet zonulin and permeability markers are rarely measured.
No Pathway to Food Tolerance
Conventional care focuses on lifelong avoidance rather than healing the gut so you can restore tolerance to the foods you love.
A Natural Functional Approach to Gut Healing
Comprehensive Gut-Immune Investigation
We run IgG food panels, gluten zoomers, leaky gut markers, microbiome testing, and immune function — not just basic IgE.
Personalized Healing Protocol
A therapeutic nutrition plan built around your specific sensitivities, with targeted gut lining repair and immune support.
Gut Repair & Immune Rebalancing
Evidence-based gut lining repair, anti-inflammatory nutrients, and immune modulation — dosed precisely from your labs.
Ongoing Monitoring & Tolerance Restoration
Regular follow-up testing and protocol adjustments ensure your gut is healing and you're restoring tolerance to foods.
We Look Where Others Don't
Measures delayed immune reactions to 200+ foods — the sensitivities standard IgE testing completely misses.
Reveals gluten sensitivity and cross-reactivity with dairy, coffee, and other foods that mimic gluten.
Leaky gut is the root cause of expanding food reactions — measuring permeability reveals the damage to repair.
Microbiome imbalance drives immune dysregulation and food reactions — DNA testing reveals the exact imbalance.
Quantifies the immune activation and inflammation driving your food reactions and systemic symptoms.
Leaky gut impairs absorption — measuring nutrients reveals deficiencies and guides precise repletion.
Standard workups check basic IgE alone — skipping IgG food panels, gluten zoomers, leaky gut markers, and microbiome testing — leaving the true drivers hidden.
of patients report significant improvement with root-cause functional intervention
Four Pillars of Our Food Sensitivity Protocol
Therapeutic Nutrition
- Personalized elimination & reintroduction
- Gut lining repair foods
- Anti-inflammatory whole foods
- Nutrient-dense repletion
Targeted Supplementation
- L-glutamine & zinc carnosine for gut repair
- Anti-inflammatory botanicals
- Vitamin D3/K2 & immune support
- Digestive enzyme optimization
Gut Repair & Immune Care
- Leaky gut sealing protocol
- Immune modulation support
- Microbiome diversity restoration
- Histamine-clearance support
Detox & Restoration
- GI-Map guided microbiome repair
- Inflammation reduction
- Nutrient absorption optimization
- Tolerance restoration strategy
Clinical Improvement Rates
Dr. Brandon Mannie
Board-Certified Functional Medicine Practitioner
Dr. Brandon Mannie is a board-certified functional medicine practitioner with over 400 hours of post-graduate training in clinical nutrition and functional medicine. He graduated from Northwestern Health Sciences University in 2004 and has been in private practice ever since.
Over the past 20+ years, Dr. Mannie has consulted with more than 3,000 patients — people who were told their labs were "normal," yet still felt far from well. His approach goes beyond symptom management: he investigates the root causes driving chronic illness and builds personalized protocols that restore true, lasting health.
Dr. Mannie operates a fully virtual telehealth practice, serving patients nationwide. His clinical expertise includes type 2 diabetes, insulin resistance, metabolic syndrome, weight loss resistance, and neuropathy.
"I've seen patients who were dismissed for years finally get real answers and real results. That's why I do this work."
Real People. Real Results.
These are the stories of patients who were told there was nothing more that could be done — and who chose to look deeper.
"I was told I'd just have to live with the fatigue. Dr. Mannie proved them wrong."
"After 4 years on Metformin and still feeling exhausted, Dr. Mannie found my issue was cellular resistance and gut inflammation. Within 90 days on his protocol, my energy is back and I've lost 15 pounds that wouldn't budge before."
"I was told I'd just have to live with the fatigue. Dr. Mannie proved them wrong. Within 90 days on his protocol, my energy is back and I've lost 15 pounds that wouldn't budge before."
"I was told my fasting glucose was 'normal' — meaning they had no idea why I felt so terrible. The functional labs revealed elevated fasting insulin and systemic inflammation. The targeted protocol changed everything."
"As a nurse, I was skeptical of anything outside conventional medicine. But when conventional medicine failed my Type 2 Diabetes for three years, I had nothing to lose. The root cause approach is exactly what I wish I had been taught."
"The difference between this approach and everything else I tried is that it actually makes sense. They found the cause — chronic gut inflammation and heavy metal toxicity triggering my immune system — and addressed it systematically."
"I had given up on ever having energy to play with my grandkids. The functional protocol — particularly the gut healing and targeted nutrient support — gave me my life back."
"Three specialists and a decade of suffering. One functional consultation changed the trajectory completely. My metabolic dysfunction had a root cause — and now it has a solution."
"I lost 47 pounds with Dr. Mannie's protocol without starving or resorting to injections. I sleep better, my anxiety is down, and I have boundless energy throughout the day."
"I was told I'd just have to live with the fatigue. Dr. Mannie proved them wrong. Within 90 days on his protocol, my energy is back and I've lost 15 pounds that wouldn't budge before."
"I was told my fasting glucose was 'normal' — meaning they had no idea why I felt so terrible. The functional labs revealed elevated fasting insulin and systemic inflammation. The targeted protocol changed everything."
"As a nurse, I was skeptical of anything outside conventional medicine. But when conventional medicine failed my Type 2 Diabetes for three years, I had nothing to lose. The root cause approach is exactly what I wish I had been taught."
"The difference between this approach and everything else I tried is that it actually makes sense. They found the cause — chronic gut inflammation and heavy metal toxicity triggering my immune system — and addressed it systematically."
"I had given up on ever having energy to play with my grandkids. The functional protocol — particularly the gut healing and targeted nutrient support — gave me my life back."
"Three specialists and a decade of suffering. One functional consultation changed the trajectory completely. My metabolic dysfunction had a root cause — and now it has a solution."
"I lost 47 pounds with Dr. Mannie's protocol without starving or resorting to injections. I sleep better, my anxiety is down, and I have boundless energy throughout the day."
Frequently Asked Questions
Ready to Stop Avoiding Foods and Start Healing Your Gut?
Book a 1-on-1 strategy call with Dr. Brandon Mannie's clinical team. No obligation, no hard sell — just clinical clarity on your path to gut healing and food tolerance.
