Expert Q&A

How long have we known that diabetes can be cured by not eating any carbs? Can you guess during the weight loss plateau phase

The Historical Roots of Carb Restriction for Diabetes

We've understood the powerful link between carbohydrate intake and blood sugar control for over 150 years. In the 1790s, Dr. John Rollo successfully treated diabetes with a diet high in animal fats and proteins while virtually eliminating carbs. By the early 1900s, physicians like Dr. Frederick Allen were prescribing strict low-carb protocols that normalized blood glucose in many patients before insulin's discovery in 1921. This knowledge was largely sidelined after insulin became widely available, but it never disappeared from medical literature.

In my book The CFP Weight Loss Method, I highlight how modern research validates these early observations. Studies from the 1970s onward, including those by Dr. Robert Atkins and later Dr. Eric Westman, demonstrated that eliminating carbs can reduce or eliminate the need for diabetes medications in weeks to months for many with type 2 diabetes.

Why Carb Elimination Works So Effectively

When you remove carbs, your body shifts from burning glucose to burning fat for fuel, a state called nutritional ketosis. This directly lowers insulin demand, allowing pancreatic beta cells to rest and often recover function. For those in their 40s and 50s dealing with hormonal changes, this approach addresses insulin resistance at its root. Clinical data shows average A1C drops of 1.5-2.0 points within three months on very low carb diets, with up to 60% of participants achieving medication-free status in controlled trials.

This isn't another fad diet that will fail you. Unlike calorie-counting plans that ignore hormonal signals, carb restriction naturally reduces hunger by stabilizing blood sugar and improving satiety hormones like leptin and ghrelin.

Breaking Through the Weight Loss Plateau Phase

The weight loss plateau phase often hits between weeks 4-8 as your metabolism adapts. During this time, water weight stabilizes, and your body becomes highly efficient at using ketones. Don't panic—this is normal and expected. In The CFP Weight Loss Method, I recommend tracking fasting insulin rather than just the scale. Many see continued fat loss even when weight stalls.

Practical steps include: cycling your fat intake slightly higher for 2-3 days then lower, incorporating resistance movements that protect joints like seated band exercises or water walking, and ensuring 7-9 hours of sleep. For those managing diabetes and blood pressure, monitor readings daily as medication needs often decrease rapidly—always coordinate with your doctor.

Overcoming Common Barriers for Beginners

If joint pain makes movement feel impossible, start with 10-minute daily walks after meals to blunt glucose spikes. Insurance rarely covers structured programs, which is why my method emphasizes simple, affordable whole foods: eggs, fatty fish, leafy greens, olive oil, and limited berries. No complicated meal plans required—just focus on protein and healthy fats while keeping total daily carbs under 20-30 grams initially.

Embarrassment about obesity often prevents people from seeking help, but remember: this approach has helped thousands in similar situations reverse metabolic syndrome without shame or extreme effort. Consistency beats perfection every time.

💬 What the Community Says

The community shows strong interest in historical low-carb approaches for diabetes but remains divided on long-term sustainability. Many in the 45-55 age group share stories of rapid A1C improvements and medication reductions within the first month, yet they frequently discuss hitting frustrating weight loss plateaus around week six. Beginners often express relief at finding a method that doesn't require gym memberships or complex tracking, especially those with joint issues who appreciate gentler movement suggestions. A vocal minority debates the safety of very low carb intake with blood pressure meds, sharing experiences of needing dose adjustments under medical supervision. Overall sentiment is cautiously optimistic, with users trading practical tips like electrolyte management and simple recipes while warning against expecting overnight cures. Most agree the science has been known for decades but feels newly accessible through straightforward lifestyle changes.
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-during-the-weight-loss-plateau-phase
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
▸ What to do if you have to eat late dinners?? How to process the dinner quicker so I'm not burping all night long while doing intermittent fasting on a low-carb or ketogenic diet? ▸ Testosterone how long does it take to work while doing intermittent fasting if you're on a GLP-1 like semaglutide or tirzepatide? ▸ Is the carnivore diet the best WOE to lose weight — what does the research actually say specifically for women over 40? ▸ Is it normal to lose 6 kg in one week during the weight loss plateau phase for long-term maintenance (not just short-term)? ▸ If a random dance partner app existed .. would you try it: how to talk to your doctor about this and its effect on metabolism and insulin levels? ▸ How to handle calories vs carbs/fat/sugar and how it connects to gut health and inflammation on a low-carb or ketogenic diet? ▸ What actually helps with the dryness when you have PCOS or hormonal imbalances while doing intermittent fasting? 📖 Metabolic Flexibility — The body’s ability to efficiently switch between burning carbohydrates and burning stored body fat based on availability… ▸ I have an iodine deficiency. Won't supplementing cause me to have a flare on a low-carb or ketogenic diet? 📗 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 ▸ Lost weight not exactly willingly and everybody’s weird about it for long-term maintenance (not just short-term) — what the research actually says? ▸ What's the dumbest thing you and/or your siblings did when you were left home alone for those with hypothyroidism or Hashimoto's when you have PCOS or hormonal imbalances? ▸ Got diagnosed today, where do i go from here — what do certified weight loss coaches recommend — what certified coaches recommend? ▸ What is your immediate go to for some relief during ha — what most people get wrong about this — what certified coaches recommend? ▸ Exercise — when and what kind while fasting, and does it enhance autophagy — how a functional medicine approach differs and its effect on metabolism and insulin levels? ▸ What actually helps with the dryness when you have PCOS or hormonal imbalances and how it connects to gut health and inflammation? 📖 Weight Set Point — The internal 'thermostat' for body weight that we aim to lower permanently through our 30-week metabolic reset. ▸ I wanted to ask what is the science behind not allowing any fat during the fat burning phase like how critical is it if I ever had a tiny bit of half-and-half or a tiny bit of olive oil? Is it really do something to the body. ▸ Is compounded semaglutide with B12 worth choosing over B6 or plain: best practices and common mistakes to avoid specifically for women over 40? ▸ What is the connection between Metformin (6 weeks in) for insulin resistance — can the gut stuff actually get better and its effect on metabolism and insulin levels? ▸ Were any of you guys fans of Journey? How big were they — what the research actually says? 📗 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 ▸ Were any of you guys fans of Journey? How big were they when you have PCOS or hormonal imbalances? ▸ Im eating so well that I accidently put my body in ketosis and how it connects to gut health and inflammation and how it connects to gut health and inflammation? 📖 Maintenance Phase — The final 28 days of our 70-day cycle where we stabilize the new weight and solidify the metabolic habits that prevent f… ▸ Starting a 7 day water fast, any tips to keep hydrated on a low-carb or ketogenic diet: what to track and how to measure progress? ▸ I sometimes feel like people only talk about the obvious symptoms like irregular periods or weight gain, but the fatigue can be just as overwhelming. Has anyone else felt completely drained even: how to talk to your doctor about this: best practices and common mistakes to avoid? ▸ I am on my second week of mounjaro (2.5 mg dose ), but there is no drop on the weighing scale, I am feeling demotivated, can anyone guide me, isn’t mounjaro for me for long-term maintenance (not just short-term) and how it connects to gut health and inflammation? ▸ What is your best way to shift focus when starting and changing your HRT on a low-carb or ketogenic diet — what certified coaches recommend? ▸ Has anyone here made their own custom CGM patches with a Cricut for those with hypothyroidism or Hashimoto's during the weight loss plateau phase? ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what does the research actually say for those with hypothyroidism or Hashimoto’s? ▸ What foods to stock for overnight guest — evidence-based answer for CFP patients: what to track and how to measure progress? 📖 Visceral Fat — The dangerous 'hidden' fat stored around internal organs that drives chronic disease and is specifically targeted by our… ▸ Does mental health predict diabetes as much as BMI? Interesting ML study results: how to talk to your doctor about this 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 ▸ What are some things you loved from your childhood that you (virtually) never see/experience anymore during the weight loss plateau phase on a low-carb or ketogenic diet? ▸ Thyroid tests all in range— but high calcium — how a functional medicine approach differs during the weight loss plateau phase? ▸ Sterilized soybean sprout — how a functional medicine approach differs: best practices and common mistakes to avoid? 📖 Metabolic Stall — A plateau in weight loss often caused by hidden inflammation or hormonal adaptation, which we break using our specific 7… ▸ Do you guys eat 100% clean all the time — what does the research actually say for those with hypothyroidism or Hashimoto’s? ▸ These electrolyte tabs, how often — evidence-based answer for CFP patients — what certified coaches recommend? ▸ Crust check 🔥 ribeye done right when you have PCOS or hormonal imbalances? ▸ Anyone remember the metal lid you had to use a butter knife to pop off: what to track and how to measure progress while doing intermittent fasting? ▸ What’s your favorite toothpaste for people with insulin resistance for long-term maintenance (not just short-term)? ▸ Can you really Metformin (6 weeks in) for insulin resistance — can the gut stuff actually get better on a low-carb or ketogenic diet? 📗 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 ▸ How many were first diagnosed with OCD if you're on a GLP-1 like semaglutide or tirzepatide on a low-carb or ketogenic diet? 📖 Nutrient Density — Prioritizing foods that provide maximum vitamins and minerals per calorie to satisfy the brain and end the cycle of hidd… ▸ How many were first diagnosed with OCD if you're on a GLP-1 like semaglutide or tirzepatide for people with insulin resistance? ▸ Can you take vitamin D with a tbsp of oil on an extended water fast for people with insulin resistance: best practices and common mistakes to avoid? ▸ What to do if you have to eat late dinners?? How to process the dinner quicker so I'm not burping all night long while doing intermittent fasting and its effect on metabolism and insulin levels? ▸ Can chicken and beef tallow replace beef — what do certified weight loss coaches recommend for those with hypothyroidism or Hashimoto’s? ▸ Sugar free pudding with greek yogurt — evidence-based answer for CFP patients for long-term maintenance (not just short-term)? ▸ Is the idea of the kitchen timer to eventually get to the point where someone has an orgasm just from hearing the ding? Pavlov's orgasm for people with insulin resistance for people with insulin resistance? 📖 Bio-Individuality — The understanding that every patient’s metabolic journey is unique, requiring a personalized approach to dosing and diet… ▸ Who still goes to steeplechase — what do certified weight loss coaches recommend for long-term maintenance (not just short-term)? 📗 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 ▸ I am on my second week of mounjaro (2.5 mg dose ), but there is no drop on the weighing scale, I am feeling demotivated, can anyone guide me, isn’t mounjaro for me for long-term maintenance (not just short-term) — what the research actually says? ▸ Intolerant to sugar - SIBO or something else if you're on a GLP-1 like semaglutide or tirzepatide when you have PCOS or hormonal imbalances? ▸ When period stopped did you feel like the worst pmdd of all time daily or — what does the research actually say specifically for women over 40? ▸ What’s your favorite toothpaste for people with insulin resistance — what the research actually says? ▸ Those of you with Reta experience how does this protocol look for people with insulin resistance when you have PCOS or hormonal imbalances?