Expert Q&A

How long have we known that diabetes can be cured by not eating any carbs? Can you guess for people with insulin resistance

The History of Carbohydrate Restriction for Diabetes Reversal

Physicians have understood the connection between carbohydrates and blood sugar for over 150 years. In the 1790s, Dr. John Rollo successfully treated diabetes with a meat-based diet virtually devoid of carbs. By the late 1800s, the "starvation diet" — extremely low in carbohydrates — became standard medical treatment. In 1916, Dr. Frederick Allen's Rockefeller Institute work showed that restricting carbs could normalize blood glucose in many patients, often eliminating the need for insulin once it became available in 1921. This knowledge was largely sidelined after insulin's discovery, but the core principle remained: removing carbs dramatically improves glycemic control.

Modern Understanding and My "Metabolic Reset" Approach

In my book The Metabolic Reset, I explain that insulin resistance — the root driver of type 2 diabetes — develops when chronic high-carb intake forces the pancreas to overproduce insulin. Cells eventually stop responding, leading to elevated blood sugar, weight gain, and inflammation that worsens joint pain. Clinical trials since the 1970s, including those by Dr. Robert Atkins and later Dr. Eric Westman, have repeatedly shown that eliminating carbs can reverse type 2 diabetes in weeks to months. A 2019 study in The Lancet found 46% of participants achieved remission after one year on a very low-carb diet under 50 grams daily.

Timeline for People With Insulin Resistance

For those with insulin resistance, especially women in their late 40s and 50s dealing with hormonal shifts, improvements often appear faster than expected. Many notice lower fasting blood sugar within 7-14 days of strict carb elimination. Full diabetes reversal — defined as HbA1c below 6.5% without medication — typically occurs between 3-6 months when following a structured plan. In my practice, clients following the Metabolic Reset protocol see an average 15-25 pound loss in the first 90 days, which directly reduces pressure on joints and improves mobility. Blood pressure often normalizes alongside blood sugar, addressing multiple concerns without expensive programs insurance won't cover.

Practical Steps to Start Without Overwhelm

Begin by removing all grains, sugars, and starchy vegetables for 30 days. Focus on protein (eggs, poultry, fish, beef), healthy fats (avocado, olive oil, nuts), and non-starchy vegetables. Eat three satisfying meals daily — no complex meal prep needed. For joint pain, start with 10-minute gentle walks after meals instead of gym sessions. Track fasting blood glucose with an inexpensive meter; seeing numbers drop builds confidence quickly. The key is consistency, not perfection. Many who felt embarrassed about their weight or overwhelmed by conflicting advice discover this simple approach finally works because it addresses the hormonal and metabolic issues previous diets ignored.

Reversing diabetes through carb restriction isn't new science — it's rediscovered wisdom that delivers results when applied correctly. Thousands have used this method to regain health despite busy schedules and previous diet failures.

💬 What the Community Says

The community shows strong interest in low-carb approaches for diabetes reversal, with many in the 45-55 age group sharing stories of dropping A1c from 8.5 to 5.8 within six months. Most practitioners report noticeable blood sugar improvements within two weeks of cutting carbs completely, though some struggle with the initial adjustment period. A common theme is frustration with past low-fat diets that worsened symptoms, contrasted by relief at finally addressing insulin resistance. People frequently mention joint pain easing as inflammation drops with weight loss. Debates center on sustainability — while many sustain under 50g carbs long-term, others cycle in small amounts of berries after initial reversal. Insurance coverage concerns drive interest in self-directed approaches, and there's appreciation for simple meal strategies that fit busy middle-income lifestyles. A vocal minority warns about keto flu, but most say the energy gains after week two outweigh temporary discomfort. Overall sentiment is hopeful, with users encouraging beginners that it's never too late to reverse course.
Clark, R. (2026). How long have we known that diabetes can be cured by not eating any carbs? Can y. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/how-long-have-we-known-that-diabetes-can-be-cured-by-not-eating-any-carbs-can-you-guess-for-people-with-insulin-resistance
Russell Clark, FNP-C, APRN, FNP-C, APRN
About the Author

Russell Clark, FNP-C, APRN, is the founder of CFP Weight Loss in Nashville and CFP Fit Now telehealth. Over 35 years in healthcare — Army Nurse Reserves, Level 1 trauma ER, hospitalist — he developed a 30-week protocol integrating real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 30–90 pounds. He and his wife Anne-Marie lost a combined 275 pounds using the same protocol.

Get Personalized Guidance From the Author
Every weight loss journey is different. Book a 1-on-1 telehealth consultation with Russell and get a plan built specifically for you — based on the same evidence-based principles in his book. Available to patients in all 50 states.
Book Your Consultation →
Have a follow-up question?
More Questions 200 answered
Insulin resistance caused my weight gain despite eating low calorie diet, anyone else — how a functional medicine approach differs specifically for women over 40? How I cured my bad breath. Especially helpful for people with sinus issues: what to track and how to measure progress: what to track and how to measure progress? My friends stopped being impressed by my weight loss ages ago. I just reached my goal weight, would you cheer for me in their place: what to track and how to measure progress when you have PCOS or hormonal imbalances? How I cured my bad breath. Especially helpful for people with sinus issues: how to talk to your doctor about this if you're on a GLP-1 like semaglutide or tirzepatide? 📖 Anti-Inflammatory Protocol — A way of eating that prioritizes whole foods and eliminates triggers to quiet the internal 'fire' that prevents fat cell… Digestive issues? Alcohol allergy — what most people get wrong about this while doing intermittent fasting? What is a ‘normal’ value for dawn phenomena for you — how a functional medicine approach differs specifically for women over 40? Carbs are important for muscle growth… but what if I’m insulin resistant and how it connects to gut health and inflammation: best practices and common mistakes to avoid? Anyone else feel this way and the role of cortisol and stress hormones for those with hypothyroidism or Hashimoto’s? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 Here's the things I wish I'd known back then... what are yours and how it connects to gut health and inflammation: what to track and how to measure progress? Do you know any good empirical studies on LCHF and its effect on metabolism and insulin levels when you have PCOS or hormonal imbalances? What made you start carnivore and how it connects to gut health and inflammation? 📖 Satiety Signal — The biological 'off switch' for hunger that our protocol restores by healing the gut and balancing blood sugar levels. Is there anyone who drink coffee after fatty carnivore meal — how a functional medicine approach differs and its effect on metabolism and insulin levels? Is the carnivore diet the best WOE to lose weight while doing intermittent fasting: best practices and common mistakes to avoid? How to get better cholesterol test scores during the weight loss plateau phase if you're on a GLP-1 like semaglutide or tirzepatide? Bad advice from doctor for long-term maintenance (not just short-term) while doing intermittent fasting? When you get your microdose calculations wrong for the Monday morning meeting for people with insulin resistance for those with hypothyroidism or Hashimoto’s? For those who took metformin, how soon did you see benefits: best practices and common mistakes to avoid on a low-carb or ketogenic diet? How long was your withdrawal when you went sugarfree if you're on a GLP-1 like semaglutide or tirzepatide — what certified coaches recommend? 📖 Lectin-Free Living — Eliminating inflammatory plant proteins that damage the gut lining and trigger the autoimmune responses that often stall… 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 Is there such a thing as eating too much fish fat for weight loss — what do certified weight loss coaches recommend while doing intermittent fasting? Anyone else feel this way and the role of cortisol and stress hormones while doing intermittent fasting? Anyone else feel this way and the role of cortisol and stress hormones and its effect on metabolism and insulin levels? Does anyone else remember the darkest time of our Generation — evidence-based answer for CFP patients while doing intermittent fasting? 📖 Non-Scale Victories (NSV) — Improvements in energy, sleep, and disease reversal that matter just as much as the numbers on the scale during your tra… For those who took metformin, how soon did you see benefits: best practices and common mistakes to avoid if you're on a GLP-1 like semaglutide or tirzepatide? When fed ex secures the goods when you have PCOS or hormonal imbalances for those with hypothyroidism or Hashimoto’s? Brest tenderness from testosterone and how it connects to gut health and inflammation? How to induce autophagy without fasting for a long time — what do certified weight loss coaches recommend on a low-carb or ketogenic diet? Where to go from here? I lost 13kg on mounjaro, but I am doing the rest naturally. Advice? :) — what does the research actually say: best practices and common mistakes to avoid? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 “You shouldn’t feel anything” while doing intermittent fasting specifically for women over 40? What is the connection between I reduced my IR from 15.5 to 4 in 3 months: what to track and how to measure progress? 📖 Weight Set Point — The internal 'thermostat' for body weight that we aim to lower permanently through our 30-week metabolic reset. If you have a recently found thyroid nodule — would anyone be open to sharing what the first few weeks were like if you're on a GLP-1 like semaglutide or tirzepatide specifically for women over 40? Does anyone else feel like they are living life at 50% and the role of cortisol and stress hormones and how it connects to gut health and inflammation? Gaining tons of weight but normal levels — what does the research actually say — what the research actually says? Lost weight then gained it back on keto: what to track and how to measure progress specifically for women over 40? How much keto-ade should I safely drink — how a functional medicine approach differs and how it connects to gut health and inflammation? How good is it if I still drink (sugar free) soda for those with hypothyroidism or Hashimoto's and how it connects to gut health and inflammation? 📖 Diabetes Reversal — The clinical goal of restoring normal blood sugar levels and insulin function, as seen in patients like John who no long… What to do with mg PCOS + Questions and how it connects to gut health and inflammation while doing intermittent fasting? What can I ask for if estrodiol cream remains in shortage? Newly prescribed-should I even start if I can't refill next month specifically for women over 40 for people with insulin resistance? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 Refreshing Summer snack ideas during the weight loss plateau phase: what to track and how to measure progress? How I finally stopped crashing after workouts — the training structure that actually works with Hashimoto's: what to track and how to measure progress and how it connects to gut health and inflammation? Has anyone with loose skin tried water fasting for long periods of time? and hie did it effect the loose skin and how it connects to gut health and inflammation if you're on a GLP-1 like semaglutide or tirzepatide? 📖 GLP-1 Receptor Agonist — A class of medication that mimics natural hormones to improve insulin secretion and slow gastric emptying, used strategi… How did I not get a heads up? I now make it my goal to help, support and inform others heading towards menooause and its effect on metabolism and insulin levels — what certified coaches recommend? Being underweight, panic and anxiety. Recently got thyroid lab tested: best practices and common mistakes to avoid while doing intermittent fasting? I’m looking into possibly going grain free and I was wondering if it was just as healthy as doing keto or paleo — what most people get wrong about this and how it connects to gut health and inflammation? 📖 One Box Protocol — A revolutionary approach where we stretch one 60 mg box of tirzepatide across three metabolic phases, prioritizing long-… Probiotics worked for a month then stopped. Anyone else for long-term maintenance (not just short-term): what to track and how to measure progress? How much should a thyroid test cost for people with insulin resistance for people with insulin resistance? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 Any of you low carb, low to no fruits people go camping? Even if not, what are you eating and how it connects to gut health and inflammation while doing intermittent fasting? Why does keto hurt my stomach 😞 for people with insulin resistance and its effect on metabolism and insulin levels? Frustrated with lack of progress. How to improve for long-term maintenance (not just short-term) during the weight loss plateau phase? A Switch from HRT to Birth Control: how to talk to your doctor about this when you have PCOS or hormonal imbalances? Do you know of any snacks that you can just chew on when you're bored on a low-carb or ketogenic diet — what certified coaches recommend?