The Disruptors Series — Part Four
We have spent three weeks covering the disruptors that most people understand as health issues — blood sugar, sleep, movement. This week we’re covering the one that makes all of them worse, the one that connects every thread we’ve pulled on this month, and the one that is simultaneously the most discussed and the most underestimated factor in modern metabolic health: what the majority of people in industrialized nations eat, most of the time.
What Ultra-Processed Food Actually Is
The term ultra-processed is not a judgment about taste or a commentary on moral food choices. It is a scientific classification — developed by epidemiologist Carlos Monteiro and the NOVA food classification system — that describes foods manufactured through industrial processes using ingredients and additives that have no culinary equivalent. They are not foods that have been cooked or preserved. They are foods that have been fundamentally reconstituted and engineered.
Ultra-processed foods typically contain combinations of refined starches, added sugars, industrial seed oils, artificial flavors, preservatives, emulsifiers, and texture-modifying agents that are designed to produce hyper-palatable products — foods engineered to be consumed in quantities beyond what the body’s natural satiety signals would otherwise permit. By some estimates, ultra-processed foods now account for more than fifty percent of caloric intake in the United States, and significantly higher percentages in certain demographic groups.
This is not a minor dietary variable. It is the dominant feature of the food environment that most people navigate every day.
How It Disrupts Blood Sugar
We covered blood sugar instability in Week One, but ultra-processed food is the primary dietary driver of that instability and deserves specific treatment here.
Ultra-processed foods are typically stripped of the dietary fiber, protein, and fat that slow the absorption of glucose from the gut. What remains is a highly refined carbohydrate matrix — or a combination of refined carbohydrates, industrial fats, and added sugars — that enters the bloodstream rapidly, driving sharp glucose spikes and the reactive insulin responses that follow.
The emulsifiers and texture agents in many ultra-processed foods also directly affect the gut lining, altering the permeability and the microbial environment in ways that further impair glucose regulation. The gut’s role in signaling satiety and regulating the speed of gastric emptying is disrupted — meaning the body’s normal feedback mechanisms for managing blood sugar become less reliable.
The result is a food environment in which the default option at almost every point of access actively drives the blood sugar instability that contributes to energy dysregulation, cognitive impairment, metabolic disease, and — as we covered this month — poor sleep, increased inflammatory load, and reduced motivation to move.
How It Disrupts the Gut
The gut microbiome — the ecosystem of microorganisms we covered in the Inside the System series — requires dietary diversity and fiber to maintain its health and diversity. Ultra-processed foods provide neither. They are typically low in fiber and high in additives that actively alter the gut environment in ways that reduce microbial diversity and compromise gut barrier integrity.
Certain emulsifiers — polysorbate 80 and carboxymethylcellulose, among others — have been shown in research to directly disrupt the mucus layer that protects the gut lining and to alter the composition of the microbiome in ways that promote inflammatory signaling. These are common ingredients in a wide range of everyday processed foods.
A disrupted microbiome produces less of the short-chain fatty acids that feed the gut lining, regulate immune function, and support the anti-inflammatory processes that depend on a healthy gut ecosystem. It also produces less of the neurotransmitter precursors — serotonin, GABA precursors, dopamine precursors — that the gut-brain axis depends on for neurological regulation. The gut consequences of a diet dominated by ultra-processed foods ripple outward into immune function, mood, cognitive performance, and metabolic health in ways that go far beyond digestion.
How It Drives Inflammation
The relationship between ultra-processed food and chronic inflammation is direct, well-documented, and operates through multiple mechanisms simultaneously.
Refined seed oils — used extensively in ultra-processed foods for their low cost and long shelf stability — are high in omega-6 fatty acids. While omega-6 fats are not inherently harmful, the ratio of omega-6 to omega-3 fatty acids in the diet has significant implications for inflammatory signaling. Traditional diets produced omega-6 to omega-3 ratios of approximately four to one. The modern processed food diet produces ratios of fifteen to one or higher — a shift that tilts the body’s inflammatory balance toward pro-inflammatory states.
Added sugars drive inflammatory signaling through multiple pathways — through the oxidative stress generated by blood sugar spikes, through the production of advanced glycation end products when sugars bind to proteins, and through direct effects on gut permeability that allow inflammatory triggers into systemic circulation.
The cumulative inflammatory effect of a diet dominated by ultra-processed foods is not theoretical. It is measurable in the blood of people who eat this way consistently — and it contributes to every health outcome we care about.
How It Disrupts Sleep
The relationship between diet and sleep quality is less often discussed but well-supported by research.
Blood sugar instability — driven by ultra-processed food consumption — directly impairs sleep. A blood sugar crash in the early morning hours triggers cortisol release that can wake a person from sleep or prevent deep sleep stages from being reached. The high glycemic load of a processed food diet keeps this disruption pattern cycling throughout the night.
The gut disruption caused by ultra-processed foods also affects sleep through the gut-brain axis. Serotonin — the precursor to melatonin, the hormone that regulates the sleep-wake cycle — is produced in large quantities in the gut, with microbial involvement. A disrupted microbiome means disrupted serotonin production, which means disrupted melatonin production, which means disrupted sleep.
The additives in many ultra-processed foods — including caffeine in unexpected places, certain artificial colors, and various stimulant-adjacent compounds — also have direct effects on sleep quality that compound over time.
The Whole Month in One Place
This is why we saved ultra-processed food for last.
Every disruptor we’ve covered this month has a relationship with diet — specifically with the dietary pattern that dominates modern food culture. Blood sugar instability is driven by it. Sleep disruption is worsened by it. The motivation and energy required to break up sedentary behavior are depleted by it. And the chronic inflammation, gut dysfunction, and mitochondrial impairment we covered in June are all, in significant part, products of it.
We are not suggesting that food is the only variable. It isn’t. We are not suggesting that dietary change alone will resolve complex metabolic or neurological health challenges. It won’t. We are saying that no supplement system — however well designed — can produce its intended results in a body where the primary dietary input is actively working against the same goals the supplement is trying to support.
This is the foundation of the Holdfast approach. Not as a sales argument. As a simple description of how the biology works.
Where holdfast:CORE Fits In
Cinnamon Extract at 150mg contributes to blood sugar regulation through mechanisms directly relevant to the dietary patterns we’ve been discussing. Its active compounds — particularly the polyphenols — appear to slow gastric emptying and blunt the post-meal glucose spike, and to enhance insulin receptor sensitivity through pathways that complement the body’s own regulation systems.
Chromium Picolinate at 200mcg supports insulin function in the context of a diet that challenges it. When dietary patterns are imperfect — and they will be, for everyone — chromium supports the efficiency of insulin’s action and helps maintain the stability that poor dietary choices work against.
Curcumin Extract at 250mg addresses the inflammatory consequences of dietary patterns that promote inflammation. It doesn’t neutralize the effects of a diet dominated by ultra-processed food — nothing does — but in the context of a dietary pattern that is reasonably whole-food based, it contributes meaningfully to the body’s capacity to regulate inflammatory signaling.
And the full formula — with its support for gut health through citicoline’s membrane-support function, mitochondrial protection through ALA, and nervous system regulation through myo-inositol and magnesium — is built around the understanding that diet, sleep, movement, and stress are not separate problems. They are one system. And CORE is designed to support that system.
Closing Out The Disruptors
Four weeks. Four disruptors. One through line.
Blood sugar instability, chronic sleep debt, sedentary behavior, and ultra-processed food are not four separate issues to be addressed with four separate interventions. They are four angles on the same underlying problem: a modern environment that consistently works against the metabolic and neurological health our biology is designed to support.
Understanding that is not a reason for despair. It is a reason for a different kind of approach — one that addresses the environment, the behavior, the nutritional foundation, and the targeted support together, rather than reaching for any single solution in isolation.
That is what Holdfast is building toward. Next month we’re turning from disruption to recovery — covering the four pillars of genuine restoration and how they work together to rebuild the metabolic and neurological resilience that modern life works against.
Hold fast.