Expert Q&A

How I reduced my IR from 15.5 to 4 in 3 months on a low-carb or ketogenic diet

My Starting Point: High Insulin Resistance and Multiple Failed Diets

When my HOMA-IR score hit 15.5, I was 52, managing type 2 diabetes, high blood pressure, and constant joint pain that made even walking difficult. Like many in their late 40s and early 50s, I'd tried every mainstream diet—low-fat, calorie counting, intermittent fasting—only to regain more weight. Hormonal shifts during perimenopause made fat loss feel impossible. Insurance denied coverage for structured programs, leaving me overwhelmed by conflicting advice. That's when I turned to the principles in my book The Metabolic Reset Protocol, focusing on insulin resistance as the root cause rather than calories.

The Low-Carb Ketogenic Framework That Delivered Results

I adopted a strict ketogenic diet under 30 grams of net carbs daily, emphasizing whole foods: fatty fish, grass-fed meats, eggs, avocados, olive oil, and non-starchy vegetables. Protein stayed moderate at 1.2 grams per kg of ideal body weight to preserve muscle without spiking insulin. I tracked ketones using breath analyzers aiming for 1.5-3.0 mmol/L blood beta-hydroxybutyrate levels. This metabolic shift reduced my body's reliance on glucose, directly lowering insulin demands. Within two weeks, my fasting insulin dropped from 28 uU/mL to 12 uU/mL. I avoided all grains, sugars, and processed oils that fuel inflammation and joint pain.

Practical Daily Strategies for Beginners with Limited Time

Mornings started with a bulletproof coffee—black coffee blended with MCT oil and grass-fed butter—to maintain ketosis without breakfast prep. Lunch was a simple salad with olive oil, salmon, and leafy greens. Dinner rotated between sheet-pan chicken with broccoli or zucchini noodles with ground beef. No complex meal plans; I batch-cooked on Sundays for 20-minute assembly during the week. For joint pain, I incorporated gentle 15-minute walks after meals to improve glucose uptake without stressing knees. Supplements included magnesium glycinate (400mg), omega-3s (2g EPA/DHA), and berberine (500mg twice daily) to enhance insulin sensitivity. Sleep consistency—7.5 hours nightly—and stress reduction via 10-minute breathing exercises proved crucial, as cortisol spikes worsen insulin resistance.

Tracking Progress and Achieving a HOMA-IR of 4

By week 6, my HOMA-IR fell to 7.2; at 12 weeks it reached 4.0, with A1C dropping from 8.1% to 5.7%. I lost 28 pounds, mostly visceral fat, and my joint pain decreased by 70%, allowing daily movement. Blood pressure normalized without extra meds. The key was consistency over perfection—occasional 40-gram carb days didn't derail progress if I returned to ketosis quickly. This approach works because it addresses the hormonal drivers of midlife weight gain directly. Readers of The Metabolic Reset Protocol report similar transformations when they prioritize carb restriction and metabolic flexibility over restrictive calorie counting.

💬 What the Community Says

In online forums and diabetes support groups, many middle-aged adults share stories of dramatic HOMA-IR improvements on low-carb or ketogenic diets, often citing drops from double digits to under 5 within months. Most appreciate the simplicity—no elaborate recipes needed—and note reduced joint pain and better blood sugar control as early wins. A common debate centers on sustainability: some maintain under 50g carbs long-term while others cycle in targeted carbs around workouts. Beginners frequently mention initial keto flu struggles but say electrolytes and hydration help. Insurance coverage frustrations are widespread, pushing people toward self-guided approaches. A vocal minority warns about nutrient deficiencies without vegetables or supplements, while success stories often highlight how the diet eased hormonal symptoms during menopause. Overall, lived experiences lean positive for those who track metrics like fasting insulin rather than scale weight alone.
Clark, R. (2026). How I reduced my IR from 15.5 to 4 in 3 months on a low-carb or ketogenic diet. *CFP Weight Loss*. https://blog.cfpweightloss.com/ask/how-i-reduced-my-ir-from-15-5-to-4-in-3-months-on-a-low-carb-or-ketogenic-diet
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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