Expert Q&A

How long have we known that diabetes can be cured by not eating any carbs? Can you guess — how a functional medicine approach differs

The Historical Timeline of Carbohydrate Restriction for Diabetes

Physicians have recognized the power of carbohydrate restriction to manage and even reverse type 2 diabetes for over 150 years. In 1797, Dr. John Rollo successfully treated a patient with a low-carb, high-fat diet. By the late 1800s, the "starvation diet"—extremely low in carbs—was standard treatment before insulin's discovery in 1921. Dr. Elliott Joslin, founder of the Joslin Diabetes Center, advocated carb control as cornerstone therapy throughout the early 20th century. Modern validation arrived in the 1970s with Dr. Robert Atkins' work, followed by studies in the 2000s showing 50-70% of participants achieving diabetes remission within months on very-low-carb protocols under 50 grams daily.

How a Functional Medicine Approach Differs from Conventional Care

Conventional medicine typically treats type 2 diabetes as a lifelong progressive disease managed with escalating medications. In contrast, the functional medicine model, as detailed in my book The CFP Weight Loss Method, views it as a reversible metabolic dysfunction driven by insulin resistance, inflammation, and hormonal imbalances common in midlife. Rather than symptom suppression, we identify root causes like gut microbiome disruption, chronic stress elevating cortisol, and perimenopausal estrogen decline that accelerates fat storage around the abdomen.

Functional protocols personalize carb thresholds—often starting at 20-50 grams daily—while incorporating anti-inflammatory foods, targeted supplements like berberine or chromium, and gentle movement that respects joint pain. This contrasts sharply with one-size-fits-all ADA guidelines that still recommend 45-60 grams of carbs per meal, often leading to blood sugar spikes and medication dependence.

Practical Application for Midlife Adults Battling Hormonal Changes

For those aged 45-54 managing diabetes alongside high blood pressure and joint issues, my CFP framework emphasizes time-efficient strategies. Begin with a 7-day "metabolic reset" limiting carbs to under 30 grams while prioritizing protein (1.2-1.6g per kg body weight) and healthy fats to stabilize energy without complex meal prepping. Track fasting insulin—not just glucose—to confirm improvements; many see levels drop below 10 μU/mL within 6-8 weeks, signaling reversal.

Address hormonal shifts by including resistance-band exercises 3x weekly for 15 minutes to build muscle and improve insulin sensitivity without aggravating joints. This approach has helped thousands reduce or eliminate medications under physician supervision, with average weight loss of 15-25 pounds in the first 90 days when combined with stress-reduction techniques like 10-minute daily breathing exercises.

Why This Knowledge Has Been Overlooked and How to Move Forward

Despite centuries of evidence, pharmaceutical incentives and outdated dietary guidelines sidelined carb restriction until recent trials like Virta Health's 2018 study demonstrated 60% diabetes remission at one year. The CFP Weight Loss Method bridges this gap by making functional principles accessible without expensive testing or rigid schedules, empowering middle-income adults to regain control confidently and without embarrassment.

💬 What the Community Says

The community shows strong interest in historical low-carb approaches for diabetes reversal, with many sharing stories of successful medication reduction after adopting under-50g protocols. Most practitioners in midlife forums appreciate functional medicine's focus on root causes like hormones and inflammation over standard carb-counting advice, reporting better energy and joint comfort. However, debates persist around sustainability—some cite past keto failures due to social pressures or hidden carbs, while others praise gradual transitions. A vocal minority expresses frustration with insurance non-coverage and skepticism toward claims of "curing" diabetes, preferring terms like remission. Overall, lived experiences highlight relief at finding simpler, time-friendly plans that address overwhelming nutrition conflicts, though beginners often request clearer starting carb thresholds and physician guidance for blood pressure management.
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-how-a-functional-medicine-approach
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.

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