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://blog.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
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.

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