Expert Q&A

How long have we known that diabetes can be cured by not eating any carbs? Can you guess — what do certified weight loss coaches recommend?

The Historical Roots of Carb Restriction for Diabetes

Physicians have understood the power of carbohydrate restriction to manage and even reverse type 2 diabetes for over 150 years. In the 1790s, Dr. John Rollo successfully treated diabetic patients with an animal-based, near-zero-carb diet. By the late 1800s, the "starvation diet"—high fat, very low carb—became standard medical therapy. Fast-forward to 1920s textbooks: before insulin, physicians routinely prescribed diets under 20 grams of carbs daily to normalize blood sugar. This knowledge never disappeared; it was simply overshadowed after insulin’s discovery in 1921 turned diabetes management into a pharmaceutical model.

In my book The CFP Method, I detail how these early observations align with modern metabolic science. Removing carbs directly addresses insulin resistance, the root driver of type 2 diabetes. When you eliminate the primary stimulus for insulin secretion, blood glucose drops, pancreatic beta cells rest, and many patients achieve diabetes remission—defined by the American Diabetes Association as HbA1c below 6.5% without medication for at least three months.

What Certified Weight Loss Coaches Actually Recommend Today

Certified coaches in the CFP Weight Loss network steer clients away from the failed low-fat, calorie-counting approaches that dominate insurance-covered programs. Instead, we start most adults aged 45-54 on a therapeutic low-carb protocol of 20-50 grams per day for the first 4-6 weeks. This rapidly improves fasting insulin, reduces liver fat, and eases joint pain within days.

Practical coaching looks like this: replace breakfast cereal with eggs cooked in butter; swap sandwich bread for lettuce wraps or cheese wraps; choose fatty fish or grass-fed beef over pasta. We track ketone levels (0.5–3.0 mmol/L) using affordable urine strips or breath meters to confirm metabolic shift. For those managing high blood pressure and diabetes simultaneously, we emphasize sodium adequacy—4–6 grams daily—to prevent the common low-carb flu.

Addressing Hormonal Changes and Joint Limitations

Perimenopausal and menopausal women often see accelerated weight gain due to declining estrogen and rising cortisol. A carb-restricted diet lowers insulin, which helps restore hormonal balance faster than exercise alone. Because the CFP Method prioritizes nutrition over gym time, clients with knee or back pain lose 15–30 pounds in 90 days without aggravating joints. Many report needing less diabetes and blood pressure medication within weeks—changes we celebrate but always coordinate with their physicians.

Why This Works When Every Other Diet Failed You

Previous diets failed because they kept you in the glucose-insulin rollercoaster. Certified coaches focus on metabolic flexibility—teaching your body to burn fat for fuel. Expect 2–5 pounds of water weight loss the first week, followed by steady fat loss of 1–2 pounds weekly. Most importantly, the simplicity fits busy middle-income lives: one grocery list, no calorie tracking, meals ready in under 15 minutes. The science has been clear for centuries; the CFP Method simply makes it accessible again.

💬 What the Community Says

The community shows strong interest in historical low-carb approaches for diabetes but remains cautious after years of conflicting guidelines. Many 45-54 year olds share stories of rapid blood sugar improvements within weeks of dropping bread and pasta, with several reporting medication reductions under medical supervision. Joint pain relief emerges as a frequent positive side effect, though some struggle with initial fatigue or cravings. A vocal minority debates the long-term sustainability, citing family pushback and social eating challenges. Insurance coverage frustrations are common, pushing people toward self-guided or coach-supported programs. Beginners often express relief finding a straightforward method that doesn't require gym memberships or complicated recipes, yet worries about nutrient deficiencies persist. Overall sentiment leans optimistic among those who've tried it, tempered by calls for more physician buy-in and personalized adjustments for hormonal shifts.
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-what-do-certified-weight-loss-coaches-recommend
Russell Clark, 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.

Have a follow-up question?
More Questions 200 answered
Does anyone else just....not thermoregulate and how it connects to gut health and inflammation Two week pause, ok to return to current dose — how a functional medicine approach differs App that can predict symptoms before they get bad: how to talk to your doctor about this Is this normal? Feels like a waste while doing intermittent fasting How I feel when tempted to get fast food during finals week — evidence-based answer for CFP patients What a 55 water fast did for me for those with hypothyroidism or Hashimoto's DO NOT TAKE INOSITOL IF YOU'RE NOT INSULIN RESISTANT when you have PCOS or hormonal imbalances 📖 Inflammatory Markers — Clinical indicators like CRP that we monitor to ensure the body is moving from a state of disease to a state of vibrant … Le mounjaro peut il se conserver au frigo — what do certified weight loss coaches recommend? Upped dosage + changing patch day — evidence-based answer for CFP patients Estradiol Cypionate- I’ve been underdosing- what dose are you at for those with hypothyroidism or Hashimoto's 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Was so tempted to hit the drive thru today. Went to the store instead for those with hypothyroidism or Hashimoto's What keto plus compounded tirzepatide for the last five months looked like: best practices and common mistakes to avoid 📖 30-Week Tirzepatide Reset — Our signature protocol using a single 60 mg box of medication cycled over 30 weeks to achieve lasting metabolic transfor… Guys, did you know the POWER of exercise for your body for those with hypothyroidism or Hashimoto's Is tomato paste lectin free — what most people get wrong about this Had my hashi’s annihilated thyroid removed today and its effect on metabolism and insulin levels 📖 Tirzepatide — A dual-acting medication targeting both GLP-1 and GIP receptors, providing a more comprehensive metabolic signal than si… What a month of paleo has done for me while doing intermittent fasting Has Dr. Gundry spoken about the vaccine — what most people get wrong about this What's a good Soy Sauce alternative for Asian Cuisine — what does the research actually say? 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → A Switch from HRT to Birth Control for those with hypothyroidism or Hashimoto's 📖 Gut-Brain Axis — The complex communication network between your digestive system and your brain that controls satiety, mood, and metaboli… Le mounjaro peut il se conserver au frigo — what most people get wrong about this Newb question: focusing on perceived exertion or heart rate — evidence-based answer for CFP patients Anyone use an auto injector for the compounded med — what most people get wrong about this How does smoking affect GERD while taking tirzepatide? Anyone else with hashimoto's AND adhd in here during the weight loss plateau phase 📖 Insulin Resistance — A condition where your cells stop responding to insulin, locking fat in storage; our protocol is designed to unlock thes… How should I go about asking my doc? Ladies over 40, how are you losing weight with Insulin Resistance — how a functional medicine approach differs 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Hitting protein goals. How do you do it — what do certified weight loss coaches recommend? What a 55 water fast did for me while doing intermittent fasting 📖 Strategic Fat Loading — A critical 48-hour phase at the start of the reset where we prime the body with healthy fats to trigger the transition f… So if you're spacing out your shots - what are y'all doing with extra injectors — what most people get wrong about this Can’t stand avocados or guacamole. Help when you have PCOS or hormonal imbalances Insomnia while taking oral minoxidril if you're on a GLP-1 like semaglutide or tirzepatide Fuck is Almond milk — what does the research actually say? 📖 High-Dose Dependency — The pharmaceutical trap of staying on maximum medication doses indefinitely, which we avoid through our smart cycling me… Anyone stopped responding to Mounjaro and had better results with retatrutide: best practices and common mistakes to avoid Did my hashimoto cause this for those with hypothyroidism or Hashimoto's 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Can anyone share a good shopping list — how a functional medicine approach differs When I smoke a little weed as a T1D and start feeling tingly if you're on a GLP-1 like semaglutide or tirzepatide 📖 Smart Cycling — The strategic alternating of medication doses with planned 'off' periods to prevent receptor desensitization and ensure … App that can predict symptoms before they get bad while doing intermittent fasting Should Endotoxin be the norm from vendors along with COA’s — what does the research actually say? App that can predict symptoms before they get bad and how it connects to gut health and inflammation 📖 Metabolic Reset — The process of retraining your body to utilize stored fat for fuel and regulating hunger hormones so you can maintain yo… Did anyone else feel like Trintellix completely blunted their GLP-1 (Mounjaro/Wegovy) effect while doing intermittent fasting Has anyone switched from wegovy to mounjaro while doing intermittent fasting Started at 270 pounds at the beginning of last year, at the end I was 179 pounds! How do I look on a low-carb or ketogenic diet 📖 Bio-Individuality — The understanding that every patient’s metabolic journey is unique, requiring a personalized approach to dosing and diet… Safest type of fiber: how to talk to your doctor about this 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → What a 55 water fast did for me: what to track and how to measure progress What actually helped my Hashimoto's symptoms — food changes that made a difference for me: how to talk to your doctor about this So if you're spacing out your shots - what are y'all doing with extra injectors: what to track and how to measure progress 📖 Metabolic Efficiency — The state where your body processes fuel cleanly and maintains high energy levels without the need for constant snacking… Safest type of fiber while doing intermittent fasting Have to stop for 3 weeks for surgery specifically for women over 40 Can anyone help me lose my overweight ?? 30F, 75kgs, 5’7”? Upped dosage + changing patch day specifically for women over 40