Expert Q&A

Anyone else come to the realization IR was the root cause of issues throughout your life — how a functional medicine approach differs

The Moment I Realized Insulin Resistance Was the Hidden Driver

For years I watched clients in their 45-54 age range struggle with the same pattern: stubborn weight that wouldn't budge despite cutting calories, creeping blood sugar numbers, rising blood pressure, and joint pain that made movement feel impossible. When I finally connected the dots, it became clear that insulin resistance was often the lifelong root cause. This metabolic dysfunction begins silently—sometimes in our 20s or 30s—and quietly fuels inflammation, hormonal chaos, and progressive weight gain. Many of us have failed every diet before because we were treating symptoms, not the core metabolic problem.

How Insulin Resistance Develops and Why It Feels So Personal

Insulin resistance occurs when cells stop responding efficiently to insulin, forcing the pancreas to produce more. Over time this leads to higher circulating insulin levels that promote fat storage, especially around the midsection. For women navigating perimenopause, declining estrogen amplifies the effect, making hormonal weight gain feel inevitable. Add in chronic stress, poor sleep, and the standard American diet heavy in refined carbs, and the cycle accelerates. Joint pain often worsens because excess insulin drives inflammation. Many feel embarrassed to ask for help with obesity, believing it's simply a willpower issue. In my book, I outline how recognizing this early changes everything—no more blaming yourself for “failed” diets that never addressed blood sugar regulation.

How a Functional Medicine Approach Differs from Conventional Care

Conventional medicine typically waits until you have a diagnosable disease like type 2 diabetes before intervening, often with medications that don't fix the underlying resistance. A functional medicine approach looks upstream: comprehensive testing of fasting insulin, HbA1c, inflammatory markers, and hormone panels long before numbers look “bad.” We focus on root causes—gut health, nutrient deficiencies, toxin load, and circadian rhythm. Instead of restrictive meal plans that don't fit real life, I teach time-efficient strategies like pairing protein with fiber-rich vegetables and using strategic movement that respects joint pain. Insurance rarely covers these deeper investigations, so we emphasize affordable lifestyle upgrades that deliver results without fancy programs.

Practical Steps to Reverse Insulin Resistance Starting Today

Begin with a 10-hour eating window to improve insulin sensitivity—finish dinner by 7 p.m. and eat breakfast at 9 a.m. Prioritize 30 grams of protein at each meal to blunt glucose spikes. Incorporate gentle strength training twice weekly; even seated resistance bands reduce joint stress while building muscle that burns glucose. Track fasting glucose and ketones with affordable home meters to see progress within 2–4 weeks. In my methodology, these small, consistent changes reverse insulin resistance without overwhelm. Many clients lower blood pressure and diabetes risk markers while losing 1–2 pounds of fat weekly. The relief of finally understanding the root cause removes the shame and replaces it with empowerment.

Reversing lifelong insulin resistance is achievable at any age when you work with your metabolism instead of against it. Start small, stay consistent, and watch decades of metabolic struggle begin to resolve.

💬 What the Community Says

The community is split between those who had an "aha" moment after years of yo-yo dieting and others still skeptical that insulin resistance explains their lifelong fatigue and weight issues. Many in the 45-54 group share stories of finally getting fasting insulin tested through functional practitioners after conventional doctors dismissed early symptoms. A common theme is frustration with insurance not covering advanced metabolic testing, pushing people toward self-experimentation with continuous glucose monitors and low-carb experiments. Lived experiences often mention reduced joint pain and better energy once they addressed blood sugar stability, though some debate how sustainable functional medicine protocols are for busy middle-income households. A vocal minority warns against over-diagnosing insulin resistance without proper labs, while most practitioners find that shifting meal timing and increasing protein yields noticeable changes within weeks even without drastic gym schedules. Overall, the forums reflect growing interest in root-cause approaches over symptom management.
Clark, R. (2026). Anyone else come to the realization IR was the root cause of issues throughout y. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/anyone-else-come-to-the-realization-ir-was-the-root-cause-of-issues-throughout-your-life-how-a-functional-medicine-approach
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.

Have a follow-up question?
More Questions 200 answered
Depressive symptoms from non-stick air fryer — how a functional medicine approach differs How much are people paying for Estring during the weight loss plateau phase How often can I eat in season fruits — how a functional medicine approach differs When people ask how I can tell my sugar's low and the role of cortisol and stress hormones How I feel every time I go grocery shopping during the weight loss plateau phase Does anyone else feel like they are living life at 50% on a low-carb or ketogenic diet Upped dosage + changing patch day — evidence-based answer for CFP patients 📖 Diabetes Reversal — The clinical goal of restoring normal blood sugar levels and insulin function, as seen in patients like John who no long… Same Workout Until it becomes Zone 2 while doing intermittent fasting Anyone use an auto injector for the compounded med: what to track and how to measure progress How I found out I had uterine cancer, what I wish I had known, and what everyone with PCOS should know about their period if you're on a GLP-1 like semaglutide or tirzepatide 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → A Switch from HRT to Birth Control for those with hypothyroidism or Hashimoto's For those that struggled with side effects, have you been able to space out your doses successfully — what do certified weight loss coaches recommend? Why I have to be so strict with my paleo regime if you're on a GLP-1 like semaglutide or tirzepatide What's a good Soy Sauce alternative for Asian Cuisine — what does the research actually say? 📖 Metabolic Stall — A plateau in weight loss often caused by hidden inflammation or hormonal adaptation, which we break using our specific 7… What are everyone’s symptoms with insulin resistance while doing intermittent fasting When the clock starts over when you have PCOS or hormonal imbalances Can’t stand avocados or guacamole. Help for people with insulin resistance Astounded to see that 19 million people in the US are on levothyroxine. Why is hypothyroidism so prevalent? What is causing such crazy high levels of thyroid disease while doing intermittent fasting Do you avoid socialising or seeing family because of how tired you are and how much effort it is to be in company while doing intermittent fasting Astounded to see that 19 million people in the US are on levothyroxine. Why is hypothyroidism so prevalent? What is causing such crazy high levels of thyroid disease — how a functional medicine approach differs 📖 Tirzepatide Micro-Dosing — The practice of using the lowest effective dose to achieve results, minimizing side effects while maximizing the longevi… 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Is it just me or is Hashimoto’s greatly underrepresented when you have PCOS or hormonal imbalances E Patch to Injections how long did you leave your patch on: what to track and how to measure progress Have to stop for 3 weeks for surgery specifically for women over 40 Zone 2 running is absurdly slow (slower than walking) — am I doing this right while doing intermittent fasting 📖 Smart Cycling — The strategic alternating of medication doses with planned 'off' periods to prevent receptor desensitization and ensure … Can I get an upvote for the true enemy of diabetes while doing intermittent fasting Can’t stand avocados or guacamole. Help: what to track and how to measure progress Anyone stopped responding to Mounjaro and had better results with retatrutide and the role of cortisol and stress hormones Has anyone used Willow while doing intermittent fasting 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → One avocado a day? What's up with that? Does anyone remember if the good doctor ever gave us an explanation for that: how to talk to your doctor about this What I learnt as a physician about having Hashimoto for myself and what helped on a low-carb or ketogenic diet WHO: don’t touch your face it’ll spread coronavirus. *Diabetics who lick their finger after a finger prick and how it connects to gut health and inflammation 📖 Satiety Signal — The biological 'off switch' for hunger that our protocol restores by healing the gut and balancing blood sugar levels. App that can predict symptoms before they get bad and how it connects to gut health and inflammation Hitting protein goals. How do you do it and how it connects to gut health and inflammation Is a woman having a small tummy a big turn off? Anyone have recipes or grocery lists — how a functional medicine approach differs 📖 Hidden Hunger — A state where the body is overfed but undernourished, leading to constant cravings because the brain isn't receiving the… Can deep extended autophagy reverse deep cavities, does anyone have any experience regarding this for long-term maintenance (not just short-term) Le mounjaro peut il se conserver au frigo if you're on a GLP-1 like semaglutide or tirzepatide Can’t stand avocados or guacamole. Help — what most people get wrong about this 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → What garmin watch should i get for christmas specifically for women over 40 Can we talk about the founder — what most people get wrong about this 📖 Muscle Sarcopenia — The dangerous loss of lean muscle mass often seen in traditional 'crash diets' or high-dose GLP-1 use, which we combat t… What a 55 water fast did for me for those with hypothyroidism or Hashimoto's App that can predict symptoms before they get bad — how a functional medicine approach differs What about oxalates if you're on a GLP-1 like semaglutide or tirzepatide Anyone worried about the FDA crackdown: how to talk to your doctor about this Is this normal? Feels like a waste and its effect on metabolism and insulin levels 📖 Non-Scale Victories (NSV) — Improvements in energy, sleep, and disease reversal that matter just as much as the numbers on the scale during your tra… Upped dosage + changing patch day specifically for women over 40 Does the bloating really ever get better specifically for women over 40 Started at 270 pounds at the beginning of last year, at the end I was 179 pounds! How do I look for those with hypothyroidism or Hashimoto's 📖 Gut Microbiome Repair — The restoration of healthy intestinal bacteria through the removal of lectins and grains, essential for long-term weight… 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Smoking while on glp1 Two week pause, ok to return to current dose — how a functional medicine approach differs