Fatty Liver Expert: Your Liver Is Filling With Fat Right Now - Dr David Unwin

Many people misunderstand or underestimate how much sugar is in everyday food, especially so-called “healthy” options. Misleading marketing and a lack of public knowledge mean that consumers can eat excessive amounts of sugar without realizing it, contributing to health issues such as obesity and diabetes.

People Often Underestimate Sugar Content in Seemingly Healthy Foods Due to Misleading Marketing

Foods commonly perceived as healthy—cereal, white rice, bananas, and even potatoes—contain surprisingly high amounts of sugar, sometimes rivaling the sugar content in candy or chocolate bars. For example, a standard bowl of cornflakes has about eight teaspoons of sugar, while a chocolate bar has seven and a half. A ripe banana contains about six teaspoons and 150 grams of boiled rice has ten teaspoons. Even a simple potato converts to sugar due to how starches break down during digestion.

Despite this, companies often market products as healthy by focusing on single ingredients or characteristics, such as labeling snacks as “fruit-based” or “made with real fruit juice.” Steven Bartlett discusses being nearly “tricked” by sweets advertised with phrases such as “made with real fruit juice,” which gives them a health halo. Dried fruit snacks, for example, may contain 60–70% sugar, amounting to little more than candy, yet their branding leads people to believe they are suitable even for children and diabetics.

Juices and smoothies are other major culprits. Although parents and consumers often see orange juice or blended fruit as a healthy substitute for sweets, David Unwin emphasizes that separating juice from whole fruit strips away fiber and speeds up glucose absorption. This leads to rapid blood sugar spikes and subsequent crashes, fueling hunger and cycles of eating. Smoothies, often embraced as health foods, operate similarly and can deliver unexpectedly large sugar loads, causing frustration among nutrition experts.

Glycemic Load and Carbohydrate Density Better Predict Blood Sugar Impact Than Glycemic Index

While terms like glycemic index (which compares how quickly different carbohydrates raise blood sugar) have become more familiar, Unwin argues that glycemic load is a superior measure. Glycemic load factors in not just the type of carbohydrate but also the portion size and nutritional density. For example, watermelon has a high glycemic index but is mostly water, so you’d need to eat a lot of it to match the glycemic impact of a chocolate bar. Glycemic load helps account for how much sugar you’re actually consuming in real portions.

Another often-overlooked issue is how foods that don’t taste sweet—such as bread, potatoes, or rice—still have a major impact on blood sugar. Starches are essentially “glucose molecules holding hands” that digestive enzymes quickly break down, turning them into sugar in the bloodstream. Even foods like brown bread, which people see as healthier, can be the equivalent of three teaspoons of sugar per small slice. Unwin demonstrates that four grams of carbohydrate from any source is roughly equivalent to one teaspoon of sugar, making the total carbohydrate content a vital metric to watch—often more important than what’s list ...

Silent 10-year Progression to Type 2 Diabetes as Fatty Liver Grows

Type 2 diabetes is an emerging crisis in children globally, not just adults. David Unwin explains that [restricted term], a hormone produced in the pancreas, is responsible for storing sugar from the bloodstream into cells for energy. However, when carbohydrate intake exceeds energy needs, the excess sugar is converted into fat within cells—including the liver—to prevent arterial damage. Over time, continuous overconsumption leads to a buildup of liver fat. Unwin himself experienced this through habitual biscuit consumption, eventually accumulating fat in both his belly and liver—a condition now affecting nearly a third of adults in the developed world.

As fat progressively infiltrates the liver, [restricted term]'s effectiveness declines, resulting in [restricted term] resistance. The pancreas compensates by producing even more [restricted term], but fat eventually infiltrates the pancreas itself. This overwork leads to a collapse in [restricted term] production, and the body can no longer maintain blood sugar levels. This process occurs silently, with fatty liver developing over roughly a decade before blood sugar rises enough for diabetes to be diagnosed—a “long silent scream from the liver” where individuals remain unaware of their worsening metabolic health until it's almost too late.

Reversing Early Type 2 Diabetes With Low-carb Intervention Shows Declining Success With Progression

Intervening during the pre-diabetes or early diabetes stage makes a profound difference. Unwin reports that in his practice, 93% of people with pre-diabetes who adopted a low-carb diet achieved normal blood sugar long-term. If caught early in diabetes (within a year of diagnosis), 73% can normalize blood sugar on a low-carb regimen. However, delaying intervention diminishes the chances: after five years of type 2 diabetes, only about 50% gain significant benefit from dietary changes alone. These statistics underscore the importance of early lifestyle intervention.

Unwin has documented 157 cases in which patients with established type 2 diabetes achieved drug-free remission through low-carb diets, proving that lifestyle changes can, in many cases, replace the need for lifelong medication. However, success depends on sustained adherence, as returning to old eating habits can quickly reverse improvements and lead to complications such as slow wound healing and the need for amputations, as happened to one of his patients.

Metabolic Impact of High Blood Sugar: Arterial Damage and Cardiovascular Risk in Diabetics

Even small elevations in blood sugar are damaging. At normal glucose levels, the entire blood supply holds just one teaspoon of sugar; every meal can potentially disrupt this balance. Unwin highlights that high blood sugar can damage the arterial glycocalyx lining within just six hours, hastening cardiovascular disease through arterial injury. Beyond cardiovascular risks, high blood sugar levels and resultant hyperinsulinemia disrupt normal cell life cycles, allowing abnormal cell proliferation and linking diabetes not just to heart attacks and strokes but also to cancer. Eight forms of cancer show strong associations with diabetes, making rising cancer mortality among diabetics a rival to cardiovascular deaths.

Low-carb Diets Improve Liver Health, Lower Blood Pressure, Enhance Clarity, and Reduce Hunger By Restoring Metabolism

Shifting to a low-carb lifestyle rapidly improves metabolic health. Unwin observed that, even in those with a decade of abnormal liver function, adopting a low-carb diet improved liver health by 30% to 50% within just a few weeks. Blood pressure normalizes as [restricted term] resistance resolves, lowering the risk of hypertension without requiring ...

Food addiction, particularly to ultra-processed foods, is a widespread yet misunderstood problem, requiring both personal commitment and supportive networks to address effectively. Insightful patient stories and the application of psychological frameworks like the GRIN model clarify why sustainable change is so difficult and how it can be facilitated.

Ultra-Processed Food Addiction Affects 14% of the Population, Marked by Loss of Control Despite Awareness of Harm

David Unwin’s clinical experience and personal stories illustrate the depths of food addiction and its effects. He cites research indicating that around 14% of the population shows signs of ultra-processed food addiction. This addiction is characterized by the compulsion to consume foods like bread, even when individuals are fully aware of the harm it causes—resulting in patterns of secrecy, shame, and cycles of yo-yo dieting, as described in the experiences of both Unwin’s patients and his wife, Jen.

Shame in Food Addiction: Willpower & Intelligence Limitations

Unwin emphasizes that food addiction is not a matter of intelligence or willpower. Even highly intelligent individuals (including medical professionals) can be driven by cravings to hide their eating habits and feel deep shame. He recounts patients embarrassed to admit their struggles—for example, a man addicted to bread whose wife resorted to spraying bleach on it to prevent consumption, only for him to continue seeking it out.

Food Addiction Requires Abstinence, Not Moderation, Unlike Overeating or Poor Self-Control

Food addiction differs from typical overeating or minor lapses in self-control. For people with a true addictive relationship with ultra-processed foods, moderation fails. As with cigarettes and alcohol dependence, abstinence is essential: a single lapse can easily re-trigger the cycle of loss of control.

Ultra-Processed Foods Trigger Blood Sugar Spikes and Crashes, Fueling Addiction Cycle

Unwin explains that ultra-processed foods, particularly refined carbohydrates, cause blood sugar to spike and then crash, perpetuating cravings and further consumption. His patients’ real-time use of continuous glucose monitors reveals this physiological trigger and helps reinforce the connection between food, body, and brain.

Grin Model: A Psychology-Based Framework for Sustainable Change via Future Goals, Personal Resources, Steps, and Positive Reflection

Unwin applies the GRIN model to guide patients through sustainable behavioral change. The model’s focus is on setting actionable, positive goals, identifying resources and past strengths, taking small incremental steps, and celebrating positive progress.

Specify Concrete Health Goals Like "Walk Up Stairs Without Difficulty" Instead of Abstract Ones Like "Be Healthier."

Success begins with envisioning a better, concrete outcome, such as being able to walk up stairs without difficulty, rather than vague goals like “be healthier” or “lose weight.” This clarity increases motivation and the likelihood of achieving lasting change.

Identifying Personal Resources Involves Past Successes, Capabilities, and Supportive Relationships, Viewing Change As Leveraging Strengths, Not Fixing Deficiencies

Patients are encouraged to recall and build on previous successes, personal capabilities, and the support of friends and loved ones. Change is framed as an opportunity to use strengths, knowledge, and supportive networks rather than a process of correcting flaws.

Incremental Steps Maintain Momentum and Prevent All-or-nothing Thinking

Rather than attempting radical overhauls—like promising to exercise every day—patients take manageable, incremental steps. This approach helps maintain momentum and reduces the risk of giving up after inevitable setbacks. For example, adjusting expectations to "consistency" allows room for imperfection and better long-term outcomes.

Noticing Positive Changes Creates Self-Reinforcing Loops That Enhance Well-Being, Self-Esteem, and Identity Alignment, Reinforcing Commitment to Change

Reflection on progress—such as feeling better emotionally and physically, or seeing oneself as "a healthy person in control"—instills hope and motivation. These self-reinforcing loops bolster self-esteem and help internalize new, healthier identities, reinforcing commitment to change even amidst difficulties.

Balancing Encouragement and Autonomy In Supporting Loved Ones With Food-Related Health Challenges Is Crucial, as Policing Harms Self-Esteem and Outcomes

The dynamic between support and autonomy is a delicate one. Unwin shares personal experiences and those of his patients to highlight the dangers of “policing” food behaviors.

Support Through Autonomy in Health Choices

Loved ones should offer encouragement and gentle support, not judgment or control. Heavy-handed intervention—such as hiding or destroying food—often provokes defensiveness, increases secrecy, and ultimately undermines self-esteem, leading to worse outcomes.

Struggling With Food Addiction Requires a Supportive Network to Share Successes and Setbacks, as Secr ...

Diet plays a crucial role in shaping long-term health outcomes, especially in developed nations where modern food environments have driven a decline in healthspan—the years spent in good health—even as overall life expectancy remains stable or increases. Current data reveal alarming trends in the UK and US, with mounting health and economic consequences.

Healthspan Declines in Developed Nations as Lifespan Remains Stable or Increases; UK Citizens Spend 23 Years Managing Chronic Illness

Healthspan in England Drops by two Years, Creating a Gap Where People Live Longer but in Worse Health

Recent data from the UK’s Office of National Statistics and the Health Foundation (2024-2026) show that while life expectancy in England continues to inch upwards, healthspan has decreased by approximately two years over the last decade. Men and women in the UK can expect about 60 years in good health, but, with rising life expectancy, now spend up to 23 years—almost a quarter of their life—managing chronic illness or disability. This widening healthspan-lifespan gap leaves more of the population enduring long periods of poor health.

US Has Worst Healthspan-To-lifespan Ratio Globally; Americans Endure Longest Poor Health Period Despite Lower Life Expectancy

The US fares even worse, holding the largest healthspan-to-lifespan gap in the developed world. Despite lower life expectancy and a premature death rate nearly twice that of comparable nations, Americans spend a longer portion of their lives in poor health than people in any other country. This means not only are Americans dying younger, but they are also sicker for more of their lives.

Healthspan Declines With Poor Metabolic Health From Ultra-Processed Food, Ensuring Modern Medicine Extends Life Without Quality Activities

The primary driver behind these trends is poor metabolic health, linked predominantly to the high consumption of ultra-processed foods. Modern medicine prolongs life, but without metabolic health, the additional years are not lived in wellness, leaving people unable to engage in quality activities in old age.

Sugar Tied To Eight Cancers Via Inflammation, Impaired Cell Death, Tumor Fuel

Sugary and Diet Drinks Linked To Increased Cancer Risk

Dietary habits, particularly high sugar intake, are implicated in increased cancer risks. A large French study found drinking just 100ml of sugary drinks daily—a third of a typical can of soda—is associated with nearly a 20% increased risk of overall cancer. Women consuming two or more artificially sweetened drinks per day have more than double the risk of early onset colorectal cancer compared to those drinking less than one per week. High intake of sugary beverages correlates with a 78% greater risk of estrogen-dependent endometrial cancer in women.

Excessive Sugar Elevates C-Reactive Proteins and Inflammatory Markers, Promoting Tumor Progression and Metastasis, Creating a Pro-cancer Environment Even In Non-diabetics

Diets rich in added sugars chronically raise C-reactive proteins (CRPs), markers of inflammation closely tied to tumor progression and metastasis. This means even those without diabetes can develop a pro-cancer environment in their bodies simply through poor dietary habits.

Fructose Processed In Liver Becomes Lipids For Tumors, Suggesting Cancer Exploits Modern Diets

When consumed in excess, fructose is processed in the liver and converted into lipids, or fats. Modern studies show that certain tumors directly use these fats to build their cell membranes, highlighting how cancer can exploit contemporary diets.

Blood Sugar Triggers Hyperinsulinemia Inhibiting Apoptosis, Allowing Mutated Cells to Proliferate

Chronically high sugar intake leads to persistent hyperinsulinemia, which can suppress apoptosis—the body’s method for causing damaged or cancerous cells to self-destruct. This allows mutated cells to survive and proliferate, increasing cancer risk.

Each Year of Uncontrolled Type 2 Diabetes Reduces Life Expectancy By 100 Days; One-third With the Condition Are Undiagnosed Globally

Diabetes Shortens Life via Arterial, Cellular, and Metabolic Damage

Poorly controlled type 2 diabetes inflicts widespread damage at arterial, cellular, and metabolic levels. UK government statistics reveal that every year spent with poorly controlled type 2 diabetes reduces life expectancy by about 100 days—roughly a third of a year lost annually.

Undiagnosed or Poorly Controlled Diabetes Shortens Lifespan: Screening and Early Intervention Are Public Health Priorities

Alarmingly, about a third of those with type 2 diabetes globally remain undiagnosed, meaning ...

This discussion explores a range of affordable, actionable health optimization strategies—from real-time biometrics to mineral supplementation and simple screening methods—that empower individuals to track, understand, and improve their own metabolic health.

Continuous Glucose Monitors Offer Real-Time Feedback, Enabling Data-Driven Dietary Optimization

Affordable Continuous Glucose Monitors Accessible to All

Continuous glucose monitors (CGMs), available for $20–30 online, are highlighted as powerful, accessible tools for everyone—not just diabetics. These wearable devices stream real-time blood sugar readings directly to a phone, making monitoring easy and convenient.

Blood Sugar Responses to Foods: Immediate Understanding and Motivation

With a CGM, anyone can quickly see how different foods affect their blood sugar—David Unwin demonstrates experimenting by eating various foods and checking his phone to observe immediate blood sugar reactions. Seeing a stable glucose line provides positive reinforcement, while noticing a spike after eating certain foods is highly motivating to change dietary choices.

Stress Raises Blood Sugar, Linking Emotional State, Stress Physiology, and Metabolic Health via Biometric Data

Unwin also points out that not only food, but stress, raises blood sugar—interviews or stressful social moments cause immediate measurable spikes. This demonstrates a direct link between emotional state, stress physiology, and metabolic health.

Continuous Glucose Monitors Enable Personalized Food Experiments

Using a CGM allows individuals to treat themselves as self-experiments: by measuring glucose responses to specific foods or behaviors, people can discover what works for their bodies. It encourages a data-driven, individualized approach to health, moving beyond general advice to personally relevant insights.

Magnesium Supplements Needed Due to Soil Mineral Depletion From Modern Agriculture

Modern Crops Have Lower Magnesium and Zinc Due to Depleted Soils From Intensive Agriculture, Leading To Widespread Dietary Magnesium Insufficiency Despite Sufficient Caloric Intake

Unwin points out that modern agriculture has depleted soil nutrients—especially magnesium and zinc—leaving crops and, subsequently, diets deficient. Even people eating a “real food” diet today cannot obtain as much magnesium as their grandparents did because modern crops simply have less. As a result, most people are magnesium deficient despite getting enough calories.

Magnesium Supplement Choice Depends On Digestive Function

When supplementing, the choice of magnesium preparation depends on digestive health: those with constipation should consider magnesium citrate, which is more laxative but still absorbed. For others, especially those seeking better sleep or mood, magnesium glycinate or threonate is recommended as these cross the blood-brain barrier and are not laxative.

Magnesium Deficiency Leads To Cramps, Sleep Issues, and Seizures; Serum Tests Don't Show Intracellular Magnesium Status

Magnesium deficiency can lead to muscle cramps, poor sleep, and even seizures, as shown by the death of cows from “staggers” and a patient with repeated seizures. Blood (serum) magnesium tests often fail to reveal true deficiency since most magnesium is stored inside cells.

Screening Should Offer Actionable Insights Rather Than Creating Fear Without Intervention Pathways

Ineffective Resource Use: Screening Programs Spike Anxiety and Healthcare Utilization Without Improving Outcomes

Unwin stresses that health screening should drive actionable improvements, not just cause fear. Screening that only generates anxiety leads to unnecessary healthcare resource use without real benefit, as patients become frightened without clear intervention steps.

Rapid, Affordable Health Screening With Blood Work, Body Composition Imaging, Cardiovascular Assessment, and Dermatologic Monitoring in Under one Hour Delivers Baseline Data, Empowering Individual Decision-Making Efficiently

Steven Bartlett describes new, rapid health assessments that provide comprehensive baseline data—including blood tests, circulation analysis, body composition imaging, cardiovascular and dermatologic assessments—all in less than an hour and for affordable prices (e.g., £299 vs. traditional expensive, lengthy programs). Immediate results empower individuals to make informed, efficient health decisions.

Vitamin D Essential in Developed Nations due to Indoor Lifestyles and Insufficient Su ...