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Dr. David Miller ND

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Why Am I Constipated?

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FODMAPS and Bloating

Motility Resilience Protocol

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Dr. David Miller ND

Working Together

Why Am I Constipated?

Why Am I Bloated?

FODMAPS and Bloating

Motility Resilience Protocol

Book an appointment

Working Together

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Why Am I Constipated?

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FODMAPS and Bloating

Motility Resilience Protocol

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Understanding Your Constipation — 4-Week Live Course

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Understanding Your Constipation — 4-Week Live Course

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When the System Can’t Handle Normal Physiology

In a well-functioning digestive system, movement is coordinated.

Food enters the stomach, signals initiate propulsion, and contents move downstream in an organized way. Along the way, fermentation occurs and gas is produced, but it is also cleared. Pressure does not accumulate, and the system remains relatively comfortable.

When coordination is disrupted, the same processes produce very different results.

Gas may linger rather than clear. Pressure builds. Sensitivity increases. Movement becomes inconsistent, and in some cases, retrograde. At that point, even normal levels of fermentation can begin to feel problematic.

This is often where the experience of “food reactions” begins.

From the patient’s perspective, symptoms appear tied to what was eaten. Certain foods seem to trigger bloating, discomfort, or urgency, and over time, the list of tolerated foods may narrow.

Another interpretation is possible.

If the system is not coordinating movement effectively, then normal digestive processes can produce disproportionate symptoms. In that context, the issue is not necessarily the presence of specific foods, but the system’s ability to process and move what is already there.

This distinction matters.

Because it shifts the focus away from identifying and eliminating inputs, and toward understanding how the system is functioning.

When the system can move effectively, it can often tolerate a wider range of inputs. When it cannot, even relatively simple meals may become difficult to handle.

Traffic flow and capacity

The Overlooked Role of Motility

Motility is not a single process.

It is a coordinated sequence of activity involving the stomach, the small intestine, the colon, and the outlet. Each region has its own rhythm, its own patterns of contraction, and its own regulatory control.

Gastric emptying is not the same as small intestinal propulsion. Small intestinal motility is not the same as colonic movement. Colonic movement is not the same as outlet coordination. These processes are distinct, but they must work together.

When they do, digestion tends to be relatively uneventful. When they do not, the system becomes more prone to pressure, sensitivity, and inconsistent symptoms.

There are conditions where this is already well recognized.

In gastroparesis, for example, delayed gastric emptying is understood to be central to the problem. Treatment often focuses directly on improving movement, including the use of prokinetic medications. In other motility disorders, similar principles apply. The underlying issue is not primarily what is being eaten, but how the system is moving.

In these contexts, motility is not controversial. It is the focus.

What is less clear is why this same level of emphasis is not consistently applied to more common gastrointestinal presentations, such as IBS, chronic bloating, or SIBO-type patterns, where altered motility and coordination are also frequently described.

In these conditions, the conversation often shifts toward diet, fermentation, and the composition of the microbiome. These factors can be relevant. But they do not fully explain why a system might struggle to handle normal digestive processes.

If coordination of movement is impaired — whether at the level of the stomach, small intestine, colon, or outlet — then symptoms can emerge even in the absence of overt structural disease.

From this perspective, motility is not a secondary consideration. It is a central one.

And if it is central, then it follows that improving coordination and propulsion may be one of the most direct ways to influence symptoms.

The Enteric Nervous System Has Functional Autonomy

The digestive system is often discussed in terms of the brain–gut connection.

There is good reason for this. The central and autonomic nervous systems clearly influence digestion. Stress, arousal, and emotional state can all affect motility, sensitivity, and symptom perception.

Approaches that focus on this relationship — including stress management, nervous system regulation, and cognitive strategies — can be valuable.

But they do not tell the whole story.

The enteric nervous system is not simply a downstream recipient of signals from the brain. It has the capacity to generate coordinated activity, maintain reflexes, and regulate propulsion independently. In other words, it can function with a significant degree of autonomy. Much of what happens in the gut is organized locally, not centrally.

This distinction matters clinically.

If the system were entirely dependent on central input, then top-down approaches would be sufficient to restore function. In practice, this is not always the case.

Many patients continue to experience symptoms despite addressing stress, diet, and other systemic factors. The issue is not necessarily that these approaches are ineffective, but that they may not directly engage the level at which coordination is breaking down.

This is where a more local, mechanical perspective becomes relevant.

If motility is a function of coordinated activity within the gut itself, then improving that coordination may require interventions that act more directly on the system. Not only through modulation of the central nervous system, but through approaches that engage the enteric system in a more immediate and region-specific way.

In that sense, it is not simply a matter of regulating the system from above. It is also a matter of working with it where it is operating.

A combination of both perspectives is likely more complete. But without addressing the mechanics of how the system is moving, important opportunities for change may be missed.

A Motility-Focused Approach: Restoring Coordination and Capacity

If symptoms persist despite dietary changes, supplements, or nervous system strategies, it is worth considering that the issue may not be what is being introduced into the system, but how the system is functioning.

When coordination is impaired, reducing inputs can improve comfort, but it does not necessarily restore the system’s ability to handle normal physiology.

This is where a different emphasis becomes useful. Rather than continuing to adjust inputs, the focus shifts to improving how the system moves — and more specifically, where that movement may be breaking down. In practice, this often requires a more direct, anatomically informed approach.

Acupuncture has a growing body of evidence suggesting it can influence gastrointestinal motility, including gastric emptying and intestinal transit, as well as visceral sensitivity and autonomic regulation. Manual approaches, including visceral manipulation and related abdominal therapies, are less extensively studied, but offer a similar opportunity to engage the system more locally.

What makes these approaches particularly relevant is their specificity. The stomach, small intestine, colon, and outlet do not fail in the same way, and many patients do not present with a uniformly impaired system, but with patterns of dysfunction across different regions. A more targeted approach allows these patterns to be addressed more directly.

In my clinical work, this has led to a consistent shift toward what I think of as a motility resilience approach — supporting the system’s ability to coordinate, adapt, and tolerate normal digestive processes more effectively. While dietary strategies, supplements, and nervous system interventions all have a role, they often do not produce the same consistency of change when used in isolation.

By contrast, directly engaging the system through acupuncture and hands-on approaches has, in my experience, been one of the most reliable ways to influence how the gut is functioning, particularly when coordination appears to be the limiting factor. This is not a replacement for other approaches, but a complement to them.

If symptoms arise because the system cannot move normal physiology effectively, then restoring coordination becomes a central therapeutic goal.

What this Means for You

If you’ve been dealing with persistent bloating, SIBO-type symptoms, or increasing sensitivity to foods, it may not be because those foods are inherently problematic.

It may be that your system is not handling normal digestive processes effectively.

Many people find themselves cycling through dietary changes, supplements, or protocols, with some temporary relief, but no lasting change in how their system actually functions.

If coordination and motility are part of the issue, then a different approach may be needed — one that focuses not only on what goes into the system, but on how the system moves.

A Different Way to Approach This

In practice, this shifts the focus away from trying to control symptoms through restriction alone and toward understanding how the system is functioning. The starting point is identifying where coordination appears to be breaking down — whether at the level of the stomach, small intestine, colon, or outlet — and working more directly with those patterns. From there, treatment is applied in a targeted way. In my practice, this often involves acupuncture and hands-on approaches, used to engage the system locally and support more coordinated movement.

This tends to look different from a purely diet- or supplement-driven approach. Rather than continually adjusting inputs, the emphasis is on improving how the system handles what is already there. Over time, the goal is not simply to reduce symptoms, but to improve tolerance — allowing the system to manage normal digestive processes more effectively.

Do you need to keep removing more foods?
Or do you need to improve your system’s ability to handle them?

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