Reverse Fatty Liver: The Low-Carb Science
Fatty liver affects one-third of people in developed countries and drives insulin resistance, but a low-carbohydrate diet can reverse pre-diabetes in 93% of cases and type 2 diabetes in 73% of early cases. Dr. David Unwin shares how he shifted from prescribing drugs to helping patients restore metabolic health through dietary change, backed by his practice data.
The Metabolic Crisis in Young People
Type 2 Diabetes Now Affects Young Adults
In 1986, when Dr. Unwin started his practice, type 2 diabetes was virtually unknown in people under 55 and obesity was rare. Today, he regularly sees patients under 25 with poorly controlled diabetes. The disease was renamed from 'maturity onset diabetes' to 'type 2 diabetes' specifically because so many young people now have it.
Life Expectancy Loss from Poorly Controlled Diabetes
For every year of poorly controlled type 2 diabetes, a person loses approximately 100 days of life—roughly one-third of a year. This applies regardless of age, making early intervention critical.
Cancer Risk Linked to Diabetes
Eight forms of cancer are strongly associated with type 2 diabetes, making it an increasingly common cause of mortality for diabetic patients alongside cardiovascular disease.
How Insulin and Fatty Liver Work
Insulin's Role in Blood Sugar Management
Insulin, produced by the pancreas, pushes glucose out of the bloodstream into cells for energy. When you consume more carbohydrates than needed for activity, the excess sugar is converted to fat inside cells—a safer mechanism than allowing high blood sugar to damage arteries.
High Blood Sugar Damages Arteries Rapidly
Very high blood sugar damages the glycocalyx—the nonstick lining of arteries—within just 6 hours. This cumulative arterial damage is a primary mechanism of cardiovascular disease in diabetes.
Fatty Liver Prevalence
One-third of all people in developed countries now have fatty liver disease. This occurs when excess glucose is converted to fat and stored in the liver, causing it to become enlarged and yellow rather than its normal color.
Insulin Resistance Develops from Fatty Liver
Fat accumulation in the liver interferes with insulin's effectiveness, creating insulin resistance. The pancreas responds by producing more insulin to compensate, but this creates a vicious cycle where the body needs ever-increasing amounts of insulin.
The Long Silent Scream: 10 Years of Undetected Decline
According to Professor Roy Taylor's research, people typically have fatty liver for about 10 years without knowing it. During this time, fat is also being deposited in the pancreas itself, gradually reducing the organ's ability to produce insulin until blood sugar regulation fails.
Glycemic Index vs. Glycemic Load
Glycemic Index Compares Carbohydrates to Pure Glucose
Glycemic index ranks carbohydrates by how quickly they raise blood sugar compared to pure glucose, which is set at 100. However, this metric has limitations because it doesn't account for portion size or nutrient density.
Glycemic Load Is More Practical Than Glycemic Index
Glycemic load factors in both the type of carbohydrate and the portion size, predicting how an actual serving of food will affect blood sugar. For example, you can eat more watermelon than chocolate to achieve the same blood sugar impact because watermelon is mostly water.
Dr. Unwin's Transformation: From Drug-Focused to Dietary Intervention
25 Years Following Guidelines Led to Population Health Decline
Despite following medical guidelines and prescribing medications like metformin, Dr. Unwin noticed the health of his patient population was deteriorating rather than improving. He felt that prescribing six tablets daily to patients didn't constitute true wellness, prompting him to question the conventional approach.
Financial Incentives for Metformin Prescription
Dr. Unwin's practice received payment based partly on the percentage of type 2 diabetes patients on metformin, creating a financial incentive to prescribe the drug. While metformin was considered best practice at the time, this payment structure influenced treatment decisions.
Mrs. Jones Confrontation: The Turning Point
A long-term patient, Mrs. Jones, confronted Dr. Unwin after stopping metformin, revealing she had achieved normal blood glucose through a low-carbohydrate diet by cutting bread, rice, and cereals. She pointed out that Dr. Unwin had never explained these foods were essentially sugar—'schoolboy biology' he should have known. Her blood tests confirmed her normal glucose levels despite medication discontinuation, marking his first case of drug-free type 2 diabetes reversal in 25 years.
Online Community Learning Dismissed by Healthcare Professionals
Mrs. Jones revealed she was one of 40,000 people learning online how to reverse diabetes through low-carb approaches. Dr. Unwin was ashamed to realize that healthcare professionals, including himself, had been dismissing and discouraging these patients, telling them the approach was dangerous.
Wife's Encouragement and Book Discovery
Dr. Unwin's wife, Jen, a clinical health psychologist specializing in the role of hope in disease outcomes, found 'Escape the Diet Trap' by Dr. John Briffa and encouraged her husband to try a low-carbohydrate approach. She suggested they test it themselves with willing patients, working in their own time without practice resources.
Initial Practice Resistance to Low-Carb Approach
When Dr. Unwin proposed the low-carb intervention to his partners, they rejected it, arguing it was not respectable, questioned whether it was a good use of practice resources, and suggested it might distract from treating acute conditions like chest infections.
The Low-Carb Intervention Results
Volunteer Program Structure
Dr. Unwin and his wife recruited 18 patient volunteers, plus themselves and nurse Heather (who volunteered to help), creating a group of 20 people. They met every Monday night to discuss low-carb eating, cooking techniques, and support each other through dietary changes.
Pre-Diabetes Reversal Rate
Among patients with pre-diabetes in Dr. Unwin's practice who adopted a low-carbohydrate diet, 93% achieved completely normal blood sugar levels. These results have been sustained for years with continued monitoring.
Type 2 Diabetes Reversal Rates Decline with Disease Duration
Early intervention is critical: patients with newly diagnosed type 2 diabetes have a 73% chance of achieving normal blood sugar on low-carb diet, but this drops to 50% if intervention is delayed 5 years. The longer diabetes persists untreated, the lower the chance of drug-free reversal.
Liver Function Improvement Was First Observable Result
The first measurable improvement Dr. Unwin observed in his low-carb intervention group was improvement in liver function tests. This was the initial sign that the dietary approach was working at a metabolic level.
Notable quotes
We're all sleepwalking into a metabolic disaster, and the people paying the greatest price are young people. — Dr. David Unwin
Did you ever once tell me that bread was sugar or breakfast cereals were sugar? This is schoolboy biology. — Mrs. Jones (patient)
I want to believe in what I do. — Heather (nurse volunteer)
Action items
- Get your liver function tested and ask your doctor about fatty liver disease risk, especially if you have abdominal weight gain or family history of type 2 diabetes.
- Learn the difference between glycemic index and glycemic load; prioritize foods with lower glycemic load when choosing carbohydrates.
- If you have pre-diabetes or early-stage type 2 diabetes, consider adopting a low-carbohydrate diet and monitor blood glucose regularly—93% of pre-diabetic patients in Dr. Unwin's practice achieved normal blood sugar with this approach.
- Reduce or eliminate bread, rice, breakfast cereals, and other refined carbohydrates, replacing them with whole foods and protein-rich options.
- Request blood tests to check for insulin resistance and fatty liver before symptoms develop; early detection enables the highest reversal rates.