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://blog.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
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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