A complete walkthrough of how your digestive system works, what's going wrong, and what we're doing to fix it.
Digestion is not just about breaking food down. It's about breaking it down at the right time, in the right order, and moving it through efficiently.
That entire process is controlled by the cephalic phase and the vagus nerve.
When this system is working properly
When it's not working properly, that sequence breaks down. And that's where your symptoms come from.
If digestion is not fully activated:
At that point, it becomes fuel for bacteria. Instead of being absorbed and used by your body, proteins get fermented and putrefied.
Inflammatory compounds produced
These things are quite literally toxic to your gut lining & microbiome.
NOTE: When your gut and digestion are off, consuming too much protein can often backfire in the same way as too much fiber. Protein & fiber are essential for optimal health, but your gut has to be in a strong enough place to break them down. Sometimes reducing your daily protein intake is needed as well (around 50-70 grams daily until symptoms resolve).
When this happens consistently:
So even if you try to fix the microbiome directly, the environment itself is still working against you.
Because digestion is not fully turned on, stomach acid is low and motility is not coordinated.
You may notice:
Because food is not properly broken down or moved, it ferments and gas is produced.
You may notice:
This is often a buildup from previous meals not being processed properly.
That fermentation creates gas and pressure. The pressure pushes upward, making the lower esophageal sphincter less stable.
You may notice:
Over time, your gut becomes more reactive, your tolerance to food decreases, and normal digestion starts to feel uncomfortable. This is where people feel like everything bothers them.
You can take Betaine HCl, digestive enzymes, and ox bile — and those can help support digestion. But they are not a replacement for turning digestion on.
If the cephalic phase and vagal signaling are not activated:
So when you take supplements, you are adding pieces into a system that is still uncoordinated. The timing is off. The environment is not optimal.
The simplest way to understand this
Supplements help with how strong digestion is.
But the cephalic phase and vagus nerve control when and how digestion happens.
If the timing is off, strength alone does not fix the problem.
The key takeaway
You don't have a lack of supplements problem. You have a coordination problem.
And until your body is consistently turning digestion on, lowering stomach pH at the right time, moving food properly, and releasing bile and enzymes in sync — you will continue to experience symptoms, even if you are doing everything else right.
We are restoring the sequence your body is supposed to follow:
Once that happens, everything you are already doing will start working the way it's supposed to.
The cephalic phase of digestion is the very first step in digestion, and it happens before food even reaches your stomach. It's triggered when you see, smell, think about, or taste food.
During this phase, your brain sends signals through the vagus nerve to your digestive system to prepare for food. This tells your body to start producing stomach acid, digestive enzymes, and bile, and to begin coordinating movement through the digestive tract.
The vagus nerve is the main communication pathway between your brain and your gut. It helps turn digestion on, regulates how food moves, and controls how your body responds to what you eat.
If this signaling is weak or disrupted, your body does not fully prepare for digestion. Food is not broken down properly, movement becomes uncoordinated, and this can lead to bloating, gas, and discomfort.
Before we even talk about what to add, we need to remove the things that are blocking your digestive system from turning on.
Your body is not broken. It is just not receiving the right signals at the right time.
Common things that suppress the cephalic phase
Why this matters
Digestion is not automatic. It is a coordinated response that must be activated. If your body does not receive the signal that food is coming, it will not properly produce stomach acid, enzymes, bile, or coordinated movement. This leads to food sitting, fermenting, and creating bloating.
This is the most important part of your entire protocol. Your total meal time should be 20 minutes. Do this before every meal:
Why this matters: This will help you become more aware of your speed & eating patterns.
Why this matters: Bitters stimulate the cephalic phase and signal your body to start producing stomach acid, enzymes, and bile. This is one of the best ways to activate your vagus nerve and begin coordinating all the essential digestive processes.
Why this matters: This shifts your body into a parasympathetic state so digestion can begin.
Why this matters: This activates the brain-to-gut signaling that prepares your digestive system. If you don't take a conscious pause to prepare your mind & body for digestion, then nothing is going to work properly.
Why this matters: The first bites of your meal trigger the majority of your digestive response. This is one of the most important steps for activating the cephalic phase of digestion, and it truly sets the tone for the entire meal.
Imagine you're a food judge on a cooking show 😂👨🏻🍳
3 sprays or 1 dropper directly on the tongue for 30-60 seconds, before each meal
Why this matters: Activates the digestive process through vagal signaling and improves stomach acid, enzyme, and bile release. This is like starting the engine, and it's what helps to coordinate all the moving parts that are involved in digestion.
1500-3000 mg with each meal (2-6 capsules after your first few bites of food)
Why this matters: Helps to denature protein, which is a crucial first step that allows your digestive enzymes to work better. Also ensures that the pH in your stomach is low enough to coordinate movement of that food into your small intestine. If protein isn't broken down properly, it causes your bacteria to begin fermenting it, creating a lot of inflammatory compounds like polyamines, p-cresol, ammonia, and hydrogen sulfide which can be toxic to your microbiome and gut lining.
1-2 capsules at the beginning of each meal (can be taken at the same time as Betaine HCL)
Why this matters: Pancreatic Enzyme Complex from Designs for Health is delayed-release, which ensures those enzymes aren't broken down before they reach the small intestine to help with digestion. This product also contains a small amount of ox bile to help emulsify fats and break them down into smaller, bite size particles that are easily broken down by Lipase (your main fat digesting enzyme) in your small intestine.
NOTE: If delayed-release pancreatic enzymes are not available, Digest Gold from Enzymedica is a good alternative. These enzymes are plant-derived and can survive in various pH's throughout the digestive tract.
Before Meals:
Iberogast - 20-30 drops, 10-20 mins before each meal
Before Bed:
Ginger Extract or MotilPro from Pure Encapsulations - 2-4 capsules, each night before bed
Why this matters: This improves coordination of movement through the digestive tract, supports gastric emptying, and improves the function of your Migrating Motor Complex (MMC), which is the cleaning wave that comes by in between meals and sweeps out leftover food particles, bacteria, & debris to prevent excessive fermentation & gas production.
NOTE: You don't always need both of these supplements, but adding one of these options to your digestion support tools listed above can make a HUGE difference for some people.
✓Brisk pace for 10–15 minutes after meals
Why this matters: A clinical trial found that a simple 10–15 minute walk after meals improved bloating, gas, and digestion just as effectively as prescription prokinetic medications. In fact, walking led to even greater improvements in post-meal fullness by helping food move through the stomach more efficiently.
👉 Translation: A simple 10–15 minute walk after meals ≈ prescription prokinetic (for symptom relief)
Why this matters: Supports your Migrating Motor Complex (MMC), which allows proper motility cycles to occur between meals and reduces stagnation in the small intestine. If your body loses the ability to transition between digestion mode and cleaning mode, or if you keep adding food before your gut finishes cleaning, all you're doing is creating a traffic jam and causing a buildup of leftover food that continues to ferment in your gut.
This is a physiological rhythm that has to be re-trained over time through consistency and repetition of everything we've discussed so far. It's not as simple as just flipping a switch.
NOTE: Your gut works like a dishwasher. Every time you eat, you're adding a new load, but between meals your body needs time to run a full "cleaning cycle" that clears out leftover food and bacteria. If you keep snacking or eating too frequently, it's like opening the dishwasher mid-cycle and adding more dishes before anything gets cleaned. Spacing your meals gives your body the chance to fully clear things out, which helps reduce bloating, gas, and that "food just sits" feeling.
Why this matters: All of these improve your HRV and vagal tone over time. They help switch your body into a parasympathetic 'rest and digest' state, which is the mode you need for all healing, repairing, detoxifying, digestion, and recovery. Over time this reduces hypersensitivity and improves brain-gut communication.
Over the next few weeks, we are looking for:
This is where probiotics like Saccharomyces Boulardii, HU58, and Gut-Brain Reset come into play.
Why this matters: These probiotics are carefully selected to help come in and begin fighting off unwanted bacteria in your gut. Single strain probiotics are generally much better tolerated for clients with SIBO than multi-strain blends with 10-15 different strains. However, these products often work MUCH better once digestion and motility are functioning properly.
Once we've laid the foundation, this is where antimicrobials like Biocidin and Olivirex can really shine. However if we add these before the other upstream dysfunctions are addressed, we likely won't see lasting progress.
Why this matters: Many people with gut issues take antibiotics or antimicrobials and experience very little change in symptoms. This tells us the issue is not just a bacterial overgrowth, but also how your digestive system is functioning overall. If we can get digestion & motility coordinated in the way it's supposed to again, your body responds much better to antimicrobials, and eventually fiber supplements as we work to repopulate your microbiome with beneficial bacteria.
Throughout this process, we want to be working to slowly reintroduce prebiotic-rich foods that help to feed and strengthen your beneficial gut bacteria. The most important thing to remember is that you need to take a gradual approach with this reintroduction process.
Why this matters: If you want to ensure the problem doesn't come back, you have to go through a process of repopulating your beneficial gut bacteria so that you can restore balance to that ecosystem. This not only helps to regulate the environment & repair your gut lining, but it also improves your tolerance to the fiber-rich foods that often cause bloating, gas, & discomfort.
Always work with a qualified practitioner for personalized guidance. This guide is for educational purposes.