In remembrance of Sarah Hallberg, D.O., M.S. (Ep. #162 Rebroadcast)
Dr. Sarah Hallberg, Medical Director at Virta Health, discusses the efficacy of carbohydrate restriction for reversing type 2 diabetes and understanding early metabolic illness predictors. She also shares her deeply personal journey with stage four lung cancer, detailing her aggressive treatment strategy and commitment to family and health equity.
Deep Dive Analysis
16 Topic Outline
Introduction and Dr. Sarah Hallberg's Background
Role of Diet on Fatty Acid Distribution and Type 2 Diabetes
Personal Journey to Carbohydrate Restriction for Diabetes Treatment
Institutional Acceptance and Early Research on Carbohydrate Restriction
Prevalence and Early Signs of Prediabetes and Metabolic Syndrome
Understanding Fatty Acid Metabolism and Dietary Impact
Palmitoleic Acid (POA) as a Key Biomarker for Metabolic Health
Individualized Carbohydrate Tolerance and Beta Cell Function
The Dangers of Insulin and Traditional Diabetes Management
Sarah Hallberg's Lung Cancer Diagnosis and Initial Shock
Coping with Grief and the Decision to Fight for Her Children
Understanding Non-Smoking Lung Cancer and Genetic Mutations
Aggressive Treatment Strategy and Overcoming Setbacks
Life-Threatening Complications from Chemotherapy and Recovery
Cancer Recurrence and Advocacy for Health Equity
Balancing Life, Work, and Advocacy with Chronic Cancer
6 Key Concepts
De Novo Lipogenesis (DNL)
DNL is the process by which the liver converts excess carbohydrates into fat. This process contributes to elevated triglycerides and can be a significant problem in metabolic illness, especially when carbohydrate intake exceeds an individual's tolerance.
Palmitoleic Acid (POA)
POA (C16-1) is a monounsaturated fatty acid produced from palmitic acid (C16-0) by the enzyme sterol coa desaturase (SCD1). Elevated POA levels are an independent marker of triglyceridemia and abdominal adiposity, indicating increased SCD1 activity and often preceding visible signs of metabolic disease like elevated blood sugar.
Sterol Coa Desaturase (SCD1)
SCD1 is an enzyme that converts saturated fatty acids like palmitic acid into monounsaturated fatty acids like palmitoleic acid. Its increased activity is linked to insulin resistance and the body's attempt to export excess fat from the liver, often driven by high carbohydrate consumption.
Metabolic Syndrome
A cluster of conditions that occur together, increasing your risk of heart disease, stroke, and type 2 diabetes. Criteria include elevated blood pressure, high fasting glucose, high triglycerides, low HDL cholesterol, and truncal obesity. Over 88% of adult Americans are not in optimal metabolic health by these criteria.
Insulin Reserve / Beta Cell Function
Refers to the pancreas's ability to produce insulin. In type 2 diabetes, beta cells can become overworked and dysfunctional. Restoring beta cell function, potentially by reducing carbohydrate load, can allow some individuals to reduce or eliminate insulin medication and even reintroduce some carbohydrates into their diet.
EGFR-driven Lung Cancer
A specific type of non-small cell lung cancer characterized by mutations in the epidermal growth factor receptor (EGFR) gene. This type of cancer is more common in non-smokers, particularly young women, and can be treated with targeted therapies called tyrosine kinase inhibitors (TKIs), though resistance often develops over time.
8 Questions Answered
It's important because it challenges the common belief of 'you are what you eat,' especially regarding saturated fat. Understanding this relationship helps explain how carbohydrate restriction can improve cardiovascular risk biomarkers and reverse type 2 diabetes, contrary to the idea that dietary fat directly leads to increased fat in the body's tissues.
Initially frustrated by traditional low-calorie, low-fat advice, she was given time to research and stumbled upon carbohydrate restriction for weight loss. She then observed 'miraculous' diabetes reversal in her patients, leading her to pursue further research and advocate for this approach.
Over 50% of adult Americans have diabetes or prediabetes. More strikingly, 88% of adult Americans are not in optimal metabolic health, based on NHANES data and the criteria for metabolic syndrome.
POA, produced by the enzyme SCD1, is an independent marker of high triglycerides and abdominal obesity, both signs of insulin resistance. Elevated POA levels can indicate metabolic trouble even before blood sugar levels rise, serving as an early warning sign of an individual's carbohydrate tolerance being exceeded.
Yes, type 2 diabetes can be reversed, often through carbohydrate restriction, leading to normal blood sugar and reduced medication. The ability to reverse and then reintroduce some carbohydrates depends heavily on an individual's remaining beta cell function and insulin reserve.
Lung cancer in non-smokers (12-14% of cases) is growing at scary rates, often diagnosed in people in their prime, especially young, healthy Caucasian and Asian women. It's frequently an EGFR-driven adenocarcinoma, which can be treated with targeted therapies but often recurs.
The median survival for stage four metastatic lung cancer can be as low as 8 to 12 months, depending on the specific type of cancer and mutations present. This prognosis often leads to significant emotional distress and difficult decisions for patients and their families.
Privilege significantly increases the chance of surviving cancer, as it provides access to resources like expert medical advice, the ability to travel for specialized care, and the capacity to navigate complex healthcare systems and advocate for oneself, which many other patients lack.
20 Actionable Insights
1. Reverse Type 2 Diabetes
Implement very low carbohydrate restriction to reverse type 2 diabetes, achieve normal blood sugar, and reduce medication dependence, as demonstrated by clinical experience and trials.
2. Be a Relentless Self-Advocate
Actively and persistently advocate for yourself within the healthcare system, especially when cancer recurs, to ensure necessary tests (like biopsies for genomic profiling) are performed to access appropriate treatments and clinical trials.
3. Prioritize Metabolic Health
Address the ‘sleep, exercise, nutrition trifecta’ and manage cortisol levels, as these fundamental interventions significantly reduce the risk of chronic diseases like heart disease, cancer, and Alzheimer’s.
4. Monitor Early Metabolic Markers
Be hypervigilant about any elevation in blood sugar, and consider monitoring palmitoleic acid (POA) and triglycerides as early indicators of insulin resistance, even if traditional blood sugar levels appear normal, to intervene proactively.
5. Understand Insulin’s Risks
Recognize that insulin is not a benign medication; aim to reduce insulin requirements as much as possible, as a significant reduction in dosage indicates improved health outcomes and reduced negative effects of hyperinsulinemia.
6. Challenge Medical Dogma
Continuously research and challenge existing medical beliefs and guidelines, even if it causes cognitive dissonance, to ensure that health practices are founded on the best available science and to question misleading common ideas like ‘you are what you eat’.
7. Determine Carb Tolerance
Identify your individual carbohydrate tolerance for personalized nutrition, as consuming carbohydrates above this threshold can lead to increased palmitoleic acid (POA) levels, indicating metabolic stress.
8. Treat Obesity Without Bias
Healthcare providers should approach patients struggling with obesity without bias, understanding that obesity is often a consequence of underlying disease processes rather than a personal failing.
9. Choose to Live Actively
Actively choose to live fully and with purpose, rather than succumbing to self-pity or despair, as this positive choice benefits both yourself and your loved ones, even when facing a terminal diagnosis.
10. Be Honest with Children
Communicate serious health diagnoses honestly and transparently with children, as consistent truthfulness can prevent anxiety and build trust, even if the information is difficult.
11. Seek Multiple Expert Opinions
Actively seek multiple expert opinions and explore all available treatment options, especially for complex illnesses like cancer, acknowledging that this often requires significant resources and privilege.
12. Manage Chronic Symptoms
Develop strategies to manage chronic symptoms like nausea and fatigue to maintain an active life and continue pursuing important work and personal commitments, improvising as needed.
13. Transform Anger into Purpose
Transform anger and negative emotions stemming from illness or injustice into productive action and purpose, rather than allowing them to lead to despair or inaction.
14. Prepare for Healthcare Costs
Be aware and prepared for potentially significant out-of-pocket healthcare costs, even with insurance, especially for complex and long-term illnesses like cancer, as these can amount to tens of thousands of dollars.
15. Model Resilience for Family
Model resilience for your children and loved ones by demonstrating how to cope with life’s stressors and adversities without being defeated, showing them how to live fully despite challenges.
16. Leverage Your Platform for Equity
Use personal experiences with illness, especially when privileged, to advocate for health equity and address systemic disparities in care, extending advocacy beyond your immediate situation.
17. Don’t Dismiss Severe Symptoms
Do not dismiss or rationalize away severe symptoms; seek immediate medical attention when experiencing significant health deterioration, even if you are tempted to attribute it to minor causes.
18. Accept Changed Life Plans
Practice acceptance for changed life plans and dreams due to illness, while holding onto core, non-negotiable roles and relationships, such as being a parent.
19. Educate Against Skepticism
Proactively educate and provide evidence to address potential resistance or skepticism when introducing unconventional but evidence-based approaches in healthcare, such as carbohydrate restriction.
20. Offer Carb Restriction Option
Physicians should offer carbohydrate restriction as a treatment option for all patients with metabolic disease, based on its demonstrated efficacy in improving health outcomes.
6 Key Quotes
88% of adult Americans are not in optimal metabolic health.
Sarah Hallberg
If I was speaking with someone who took care of obesity patients for obesity, they were totally, I get it. I'm doing the same thing to some varying degree. But when you moved out of that space to other subspecialists, the first thing was, oh yeah, their diabetes will go away, but you're going to kill them with heart disease, right?
Sarah Hallberg
I mean, I hate to be like overdramatic, but it truly is quite miraculous for a disease that everyone thought was chronic and progressive. To see people recover from it is quite astounding.
Sarah Hallberg
I want to move to Oregon. Because I was like, I know what this means for me. And I know what this means for my family. And I don't want to play any part in this. I don't want them suffering.
Sarah Hallberg
You can live feeling sorry for yourself. And of all the things that you're going to lose, or you can go out and live. And your kids are going to be better for it.
Sarah Hallberg
I just need 11 years, which to everyone was unrealistic, but why 11 years? Because my youngest would be graduated.
Sarah Hallberg
1 Protocols
Sarah Hallberg's Aggressive Cancer Treatment Strategy (Personal)
Sarah Hallberg- Initiate first-line Tyrosine Kinase Inhibitor (TKI) therapy (e.g., Tagrisso/Osimertinib) and continue indefinitely.
- Undergo brain radiation for smaller brain tumors.
- Seek surgical removal of primary lung tumor to decrease tumor burden and mutation risk (if deemed operable).
- If first-line TKI fails, switch to a newer TKI and undergo further brain radiation if new brain tumors appear.
- Implement a strategy of 'constantly battling' the cancer with new treatments rather than waiting for recurrence.
- Begin regular cycles of standard chemotherapy (e.g., Cisplatin).
- Immediately follow chemotherapy with anti-estrogen therapy (e.g., Lupron, Fulvostrant) if specific mutations are present, inducing early menopause.
- Add a breast cancer medication (e.g., Pablacyclib) targeting specific secondary mutations.
- After an initial period (e.g., 8 weeks) of the above, switch to different low-dose, single-agent chemotherapies (e.g., Gemcitabine), rotating agents.
- Utilize pharmacogenetics to identify genetic mutations affecting drug metabolism and adjust treatment accordingly.