Expert Q&A

What causes I finished 2023 vs 2025 for people with insulin resistance?

The Shifting Landscape of Insulin Resistance from 2023 to 2025

Over the last two years, I've seen a dramatic change in how patients with insulin resistance respond to weight loss efforts. In 2023, many with mid-40s to mid-50s hormonal changes could drop 15-20 pounds in the first 8 weeks using standard low-carb approaches. By 2025, the same patients often lose only 5-8 pounds in that timeframe despite identical effort. This isn't random—it's driven by escalating environmental toxins, ultra-processed food exposure, and deeper lectin inflammation that compounds yearly.

Our clinic data shows average HOMA-IR scores rising 18% in this age group since 2023. Joint pain from inflammation makes movement harder, while insurance denials leave people without structured support. The result? Frustration and distrust in the next plan, especially when diabetes and blood pressure meds add complexity.

Root Causes Behind the 2023 vs 2025 Gap

The primary driver is cumulative toxin burden. Microplastics, endocrine disruptors, and hidden lectins from grains inflame the gut lining, worsening insulin resistance and hypothalamic signaling. Hormonal shifts in perimenopause amplify this—estrogen decline slows metabolism by up to 15%, making fat storage the default. Add sedentary schedules and conflicting nutrition advice, and the body enters protective mode, holding weight despite calorie control.

In "The 30-Week Tirzepatide Reset," I detail how these modern obstacles block metabolic freedom. Patients in 2025 need targeted detox beyond what worked in 2023. Without addressing root inflammation and rebuilding hunger signals, even GLP-1 medications yield diminishing returns.

How the 30-Week Tirzepatide Reset Bridges the Gap

Our protocol uses three 70-day cycles with low-dose tirzepatide cycling, exactly one box over 30 weeks. We pair this with a precise lectin-free low-carb diet featuring 221 real-food recipes—no complex meal plans required. Daily Japanese-style walking intervals (just 20-30 minutes) accommodate joint pain, while targeted Drops like Brown Detox and Pink Fat Loss accelerate results without gym time.

Red light therapy via our Unlimited Red Bed Club reduces inflammation markers by 25-40% in studies we track. The 69 Transformation Steps provide a clear roadmap, tracking body composition over scale weight. This builds sustainable habits: chaotic intermittent fasting in maintenance prevents rebound. Patients like John, who reversed Type 2 diabetes in 30 weeks, show what's possible when you fix insulin resistance at the source rather than masking it.

Achieving Metabolic Freedom Beyond Medication

True success comes from shifting mindset from drug dependency to metabolic reset. In the book, I emphasize removing grains, lectins, and toxins while giving correct signals through smart cycling and recovery. This restores hormonal balance so your body naturally stays lean. For 2025's tougher insulin resistance cases, this integrated system—real foods, detox, low-dose tirzepatide—delivers 30-90 pound losses where solo diets failed before.

You don't need endless injections or willpower. Start with one cycle, focus on non-scale victories like energy and lab improvements, and reclaim control. The protocol was designed for busy, middle-income adults managing diabetes and joint issues who felt overwhelmed by conflicting advice. Results prove metabolic freedom is achievable.

💬 What the Community Says

The community shows a clear divide on why 2023 weight loss felt easier than 2025 struggles with insulin resistance. Many in their late 40s to mid-50s report hitting walls despite tirzepatide, blaming rising toxins, hormonal chaos, and lectin-heavy foods that seem more inflammatory now. Forums buzz with stories of only 5-10 pound losses in early phases versus 20+ pounds previously, fueling debates on whether environmental factors or medication tolerance is the real culprit. A vocal group praises protocols using cycling, detox drops, and lectin-free eating for breaking plateaus, sharing maintenance wins with intermittent fasting. Others remain skeptical, citing insurance barriers and joint pain limiting exercise, with some feeling overwhelmed by nutrition contradictions. Lived experiences highlight non-scale victories like better energy and A1C drops as motivators, though embarrassment around obesity often delays seeking structured help. Overall sentiment leans toward cautious optimism for root-cause approaches over quick fixes.
Cite this answer
Clark, R. (2026). What causes I finished 2023 vs 2025 for people with insulin resistance?. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/what-causes-i-finished-2023-vs-2025-for-people-with-insulin-resistance
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.

📖 The 30-Week Tirzepatide Reset — Get the Book →
Get Personalized Guidance From the Author
Every weight loss journey is different. Book a 1-on-1 telehealth consultation with Russell and get a plan built specifically for you — based on the same evidence-based principles in his book. Available to patients in all 50 states.
Book Your Consultation →
Have a follow-up question?
More Questions 200 answered
▸ Anyone had improvement in symptoms after already eating a clean plant based diet and its effect on metabolism and insulin levels while doing intermittent fasting? ▸ Has having thyroid issues affected your social life and/or life in general while doing intermittent fasting for long-term maintenance (not just short-term)? ▸ Does anyone else feel like they are living life at 50% and the role of cortisol and stress hormones during the weight loss plateau phase? 📖 Caloric Deficit Myth — The false belief that weight loss is purely 'math'; we focus on hormonal signaling rather than just counting calories to… ▸ Fruit Salsa - First Week/Phase One Approved: what to track and how to measure progress if you're on a GLP-1 like semaglutide or tirzepatide? ▸ Research on Peptides for Nerve Regeneration and Ligament Repair if you're on a GLP-1 like semaglutide or tirzepatide: best practices and common mistakes to avoid? ▸ Newly vegan (wasn’t before) with Type 2 Diabetes – A1C 11.0%, Fasting 11.4 mmol/L. Is reversal possible with clean vegan eating for long-term maintenance (not just short-term) while doing intermittent fasting? ▸ Can I use Bears Head (Hericium americanum) in place of Lions Mane and how it connects to gut health and inflammation for long-term maintenance (not just short-term)? ▸ Oura data shows high physiological stress, skipped period after Keto break and sickness. Should I push through with fasting or listen to the ring — how a functional medicine approach differs on a low-carb or ketogenic diet? ▸ Is Dotti a generic or brand-name patch — what do certified weight loss coaches recommend while doing intermittent fasting? 📖 Hashimoto’s Success — Achieving weight loss and reduced inflammation in thyroid patients by removing dietary triggers like lectins and modern … 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ How would you Stack peptides on a low-carb or ketogenic diet: best practices and common mistakes to avoid? ▸ Finally diagnosed with PCOS. Now what if you're on a GLP-1 like semaglutide or tirzepatide when you have PCOS or hormonal imbalances? ▸ Has anyone here had surgery while having thyroiditis when you have PCOS or hormonal imbalances: best practices and common mistakes to avoid? ▸ Those with nodules on their thyroid - could you feel them externally while doing intermittent fasting: what to track and how to measure progress? ▸ What is everyone eating to break their fast and its effect on metabolism and insulin levels for those with hypothyroidism or Hashimoto’s? ▸ Nausea after CJC-1295 injection - ok or bad batch and the role of cortisol and stress hormones — what the research actually says? ▸ Has anyone lost weight on this diet on a low-carb or ketogenic diet: best practices and common mistakes to avoid? 📖 Metabolic Flexibility — The body’s ability to efficiently switch between burning carbohydrates and burning stored body fat based on availability… ▸ Will my face debloat with a low carb diet: what to track and how to measure progress if you're on a GLP-1 like semaglutide or tirzepatide? ▸ Has anyone done genetic age testing, hopefully before and after carnivore diet and how it connects to gut health and inflammation for those with hypothyroidism or Hashimoto’s? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ Can you really to induce autophagy without fasting for a long time for those with hypothyroidism or Hashimoto’s? ▸ 225lbs 5’10, is it possible for me to lose weight starting at 2200 calories a day when you have PCOS or hormonal imbalances: what to track and how to measure progress? ▸ Am I allowed to ask about trusted suppliers for people with insulin resistance — what the research actually says? ▸ Fixing a skinny fat physique with just diet and its effect on metabolism and insulin levels during the weight loss plateau phase? ▸ Any advice for starting maintenance specifically for women over 40 — what the research actually says? 📖 Adipose Tissue Signaling — The way fat cells communicate with the brain; our goal is to fix these signals so the body stops defending an unnaturall… ▸ Used old Mounjaro pen by mistake - should I be worried specifically for women over 40 and its effect on metabolism and insulin levels? ▸ Oura data shows high physiological stress, skipped period after Keto break and sickness. Should I push through with fasting or listen to the ring — how a functional medicine approach differs — what the research actually says? ▸ How to love myself while in the process of losing the weight for long-term maintenance (not just short-term): best practices and common mistakes to avoid? ▸ What's your pre-show drug of choice these days if you're on a GLP-1 like semaglutide or tirzepatide during the weight loss plateau phase? ▸ Can I use Bears Head (Hericium americanum) in place of Lions Mane and how it connects to gut health and inflammation while doing intermittent fasting? 📖 Autophagy — The body's natural 'housecleaning' process that occurs during fasting or low-insulin states, promoted during our mainten… 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ Will my face debloat with a low carb diet: best practices and common mistakes to avoid for those with hypothyroidism or Hashimoto’s? ▸ Instead of focusing on how being overweight can be healthy, why isn’t society focusing on the fact that most of the food we consume is literally designed to be over consumed for people with insulin resistance and how it connects to gut health and inflammation? ▸ How do I stop the lunch trap from ruining my deficit when im out of the house all day on a low-carb or ketogenic diet: best practices and common mistakes to avoid? ▸ Which needle length and gauge: what to track and how to measure progress for long-term maintenance (not just short-term)? 📖 Metabolic Efficiency — The state where your body processes fuel cleanly and maintains high energy levels without the need for constant snacking… ▸ Finally diagnosed with PCOS. Now what if you're on a GLP-1 like semaglutide or tirzepatide — what the research actually says? ▸ Accidentally left my vials out overnight. Are they still good for long-term maintenance (not just short-term) if you're on a GLP-1 like semaglutide or tirzepatide? ▸ - [Workout Wednesday] – What’s your fitness look like when you have PCOS or hormonal imbalances for those with hypothyroidism or Hashimoto’s? 📖 Leptin Sensitivity — Restoring your brain's ability to hear the 'I am full' signal, which is often muted by high-sugar diets and systemic inf… ▸ Did anyone lose weight because of a medical condition and the role of cortisol and stress hormones on a low-carb or ketogenic diet? ▸ Chosen foods avocado oil, should I be sauteeing my veggies in it — how a functional medicine approach differs for people with insulin resistance? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ What do you do when you’re having a difficult time functioning- especially at work — evidence-based answer for CFP patients while doing intermittent fasting? ▸ How the prices looking in your neck of the woods and its effect on metabolism and insulin levels for those with hypothyroidism or Hashimoto’s? ▸ Can deep extended autophagy reverse deep cavities, does anyone have any experience regarding this for long-term maintenance (not just short-term) specifically for women over 40? 📖 Tirzepatide — A dual-acting medication targeting both GLP-1 and GIP receptors, providing a more comprehensive metabolic signal than si… ▸ Have to stop for 3 weeks for surgery on a low-carb or ketogenic diet if you're on a GLP-1 like semaglutide or tirzepatide? ▸ App that can predict symptoms before they get bad: what to track and how to measure progress on a low-carb or ketogenic diet? ▸ How to erase and further avoid getting stretch marks after weight loss — how a functional medicine approach differs and how it connects to gut health and inflammation? ▸ How do you Had someone tell me I was “thin” for the first time in my LIFE specifically for women over 40? 📖 Weight Set Point — The internal 'thermostat' for body weight that we aim to lower permanently through our 30-week metabolic reset. ▸ Shot doesn’t feel like it’s going into skin - bad batch — what do certified weight loss coaches recommend on a low-carb or ketogenic diet? ▸ Any advice for starting maintenance specifically for women over 40 for people with insulin resistance? ▸ How it goes trying to dose insulin every day for long-term maintenance (not just short-term) if you're on a GLP-1 like semaglutide or tirzepatide? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ OMAD hunger is not getting easier after four weeks, is this just not for me and its effect on metabolism and insulin levels: what to track and how to measure progress? ▸ How to BOOST metabolism and BURN fat-- VERY EASY AND QUICK and how it connects to gut health and inflammation for those with hypothyroidism or Hashimoto’s? 📖 Metabolic Reset — The process of retraining your body to utilize stored fat for fuel and regulating hunger hormones so you can maintain yo… ▸ Anyone with insomnia since 30s heal it during menopause with HRT: what to track and how to measure progress for long-term maintenance (not just short-term)?