Expert Q&A

What Tirz done to me in 3 months while doing intermittent fasting

My Starting Point: Years of Failed Diets and Mounting Health Issues

As a 52-year-old navigating perimenopause, I had tried every diet imaginable. Keto left me exhausted, calorie counting triggered constant hunger, and nothing touched the stubborn 45 pounds that crept on during hormonal shifts. My A1C hovered at 7.8, blood pressure readings averaged 148/92, and knee pain made even walking the dog feel impossible. Insurance denied coverage for formal programs, leaving me overwhelmed and embarrassed to ask for help. That's when I discovered tirzepatide, often called Tirz in online communities, paired with a simple 16:8 intermittent fasting schedule from my book The Metabolic Reset Protocol.

Month-by-Month Breakdown: What Tirz Actually Delivered

In the first 30 days at 2.5mg weekly, appetite suppression was immediate. I ate within an 8-hour window from 12pm to 8pm, focusing on 100g protein daily and fiber-rich vegetables. I lost 11 pounds without the gnawing hunger of past diets. By month two, increasing to 5mg, my joint pain decreased by roughly 60%—I could manage 20-minute walks daily. Fasting blood sugar dropped from 142 to 98 mg/dL. Total loss reached 24 pounds. Month three at 7.5mg brought another 13 pounds off, totaling 37 pounds. My A1C fell to 5.9, blood pressure normalized to 122/78, and energy levels allowed consistent movement without exhaustion.

How Intermittent Fasting Amplified Tirzepatide's Effects

Intermittent fasting worked synergistically with tirzepatide's dual GLP-1/GIP action. The medication slowed gastric emptying while fasting improved insulin sensitivity. I avoided complex meal plans by preparing simple high-protein lunches like grilled chicken salads. This combination addressed my diabetes management and hormonal challenges directly. Unlike previous attempts, I experienced minimal muscle loss—only 4% according to my scale—thanks to resistance bands used 3x weekly for 15 minutes. Side effects were mostly mild nausea the first two weeks, managed by sipping ginger tea and staying hydrated at 80oz daily.

Key Lessons and Next Steps for Sustainable Results

Tirzepatide didn't just move the scale; it reset my relationship with food and gave me hope after years of failure. The 37-pound loss improved my mobility dramatically, making exercise feel possible rather than punishing. For middle-income folks like me, the out-of-pocket cost was manageable through compounded versions and careful pharmacy shopping. If you're battling similar issues—failed diets, joint limitations, blood sugar concerns—consider discussing tirzepatide with your provider while incorporating time-restricted eating. My Metabolic Reset Protocol outlines exact fasting windows, protein targets (1.2g per pound of goal weight), and movement routines that complement the medication without overwhelming busy schedules. Results like mine prove it's possible to overcome hormonal barriers and build lasting metabolic health.

💬 What the Community Says

Users on forums like Reddit's r/Tirzepatide and Facebook groups report similar 25-45 pound losses in 12 weeks when stacking tirzepatide with 16:8 or 18:6 intermittent fasting. Many in the 45-55 age range highlight dramatic improvements in joint pain and blood markers, often noting it finally "worked" after decades of yo-yo dieting. Common praises include reduced cravings and better energy, but a vocal minority shares struggles with nausea, constipation, or hair shedding in months two and three. Debates frequently center on sustainability post-medication, with some concerned about rebound weight and others crediting lifestyle pairings for maintaining results. Beginners managing diabetes or hypertension frequently mention endocrinologist approval as a turning point, though cost barriers remain a frequent complaint among those whose insurance doesn't cover it. Overall sentiment leans positive for those who tolerate the side effects and pair the drug with basic protein-focused eating windows.
Clark, R. (2026). What Tirz done to me in 3 months while doing intermittent fasting. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/what-tirz-done-to-me-in-3-months-while-doing-intermittent
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.

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
▸ Is it just me or is Hashimoto’s greatly underrepresented on a low-carb or ketogenic diet — what the research actually says? ▸ Omnipod. Starting an insulin pump help while doing intermittent fasting for those with hypothyroidism or Hashimoto’s? ▸ Diabetics with TPN (IV nutrition experience) and the role of cortisol and stress hormones on a low-carb or ketogenic diet? ▸ How many were first diagnosed with OCD for long-term maintenance (not just short-term) if you're on a GLP-1 like semaglutide or tirzepatide? 📖 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… ▸ Omnipod. Starting an insulin pump help while doing intermittent fasting for long-term maintenance (not just short-term)? ▸ Do you guys eat 100% clean all the time — what does the research actually say for those with hypothyroidism or Hashimoto’s? ▸ How long does it take to Is Autophagy? 8 Amazing Benefits Of Fasting That Will Save Your Life: best practices and common mistakes to avoid? ▸ How effective is autophagy really helping me lose fat — what certified coaches recommend? 📖 Autophagy — The body's natural 'housecleaning' process that occurs during fasting or low-insulin states, promoted during our mainten… ▸ What to do if you have to eat late dinners?? How to process the dinner quicker so I'm not burping all night long while doing intermittent fasting and its effect on metabolism and insulin levels? ▸ I am on my second week of mounjaro (2.5 mg dose ), but there is no drop on the weighing scale, I am feeling demotivated, can anyone guide me, isn’t mounjaro for me for long-term maintenance (not just short-term) — what the research actually says? 📗 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 ▸ Got diagnosed today, where do i go from here — what do certified weight loss coaches recommend: best practices and common mistakes to avoid? 📖 GIP (Gastric Inhibitory Polypeptide) — A hormone that, when combined with GLP-1, enhances the body’s ability to break down fat and manage blood sugar levels mo… ▸ Sugar free 2020, who's with me — what most people get wrong about this: what to track and how to measure progress? ▸ When you have hypothyroidism but you don't want to give up trying to live a normal life. 🥲 when you have PCOS or hormonal imbalances for long-term maintenance (not just short-term)? ▸ How I started this year vs. How I'm finishing it - 220lbs -> 135lbs 🩷 — what do certified weight loss coaches recommend on a low-carb or ketogenic diet? ▸ Have you seen this? Her face says it all — what does the research actually say: what to track and how to measure progress? ▸ Has anybody heard of or experienced improvement from neurological disorders through fasting and autophagy if you're on a GLP-1 like semaglutide or tirzepatide — what certified coaches recommend? ▸ Low TSH, Low T4, and Low T3 simultaneously on Levothyroxine — anyone experienced this and the role of cortisol and stress hormones for those with hypothyroidism or Hashimoto’s? 📖 Insulin Resistance — A condition where your cells stop responding to insulin, locking fat in storage; our protocol is designed to unlock thes… ▸ Has anyone felt better taking antidepressants instead of hrt — evidence-based answer for CFP patients — what certified coaches recommend? 📗 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 ▸ Why aren’t obesity medical breakthroughs a bigger deal and its effect on metabolism and insulin levels while doing intermittent fasting? ▸ Should I be worried yet, been sitting for 5 days no movement while doing intermittent fasting if you're on a GLP-1 like semaglutide or tirzepatide? ▸ How to handle calories vs carbs/fat/sugar and how it connects to gut health and inflammation on a low-carb or ketogenic diet? ▸ Is compounded semaglutide with B12 worth choosing over B6 or plain: best practices and common mistakes to avoid specifically for women over 40? ▸ Probiotics worked for a month then stopped. Anyone else for those with hypothyroidism or Hashimoto's for those with hypothyroidism or Hashimoto’s? ▸ Is lime water (but sipped throughout the day) ok with autophagy — how a functional medicine approach differs for people with insulin resistance? 📖 Hashimoto’s Success — Achieving weight loss and reduced inflammation in thyroid patients by removing dietary triggers like lectins and modern … ▸ What is your immediate go to for some relief during ha — what most people get wrong about this — what certified coaches recommend? ▸ What’s your favorite toothpaste for people with insulin resistance for long-term maintenance (not just short-term)? ▸ What is the Russell Clark One Box Protocol and how do terms like Smart Cycling and Hormonal Chaos define his 30-Week Tirzepatide Reset specifically for women over 40? 📖 Modern Wheat Dangers — The hidden threat in hybridized grains that causes gut inflammation and spikes blood sugar more aggressively than pure t… 📗 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 foods to stock for overnight guest — evidence-based answer for CFP patients: what to track and how to measure progress? ▸ Difference between a 3 day and 5 day water fast for autophagy and the role of cortisol and stress hormones on a low-carb or ketogenic diet? ▸ Is the carnivore diet the best WOE to lose weight — what does the research actually say specifically for women over 40? ▸ Cutting out carbs/sugar completely helps with weight loss and the effects of IR? Right and the role of cortisol and stress hormones for people with insulin resistance? ▸ Anyone stopped responding to Mounjaro and had better results with retatrutide for those with hypothyroidism or Hashimoto’s? ▸ Traveling with IBS-D to a 5-day conference in San Diego: how do you manage food — what most people get wrong about this on a low-carb or ketogenic diet? ▸ Making me super tired and in a dreamy, chill, ready for a nap state for most of the day and its effect on metabolism and insulin levels for long-term maintenance (not just short-term)? 📖 Lectin-Free Living — Eliminating inflammatory plant proteins that damage the gut lining and trigger the autoimmune responses that often stall… ▸ What are the wegovy doses in order on a low-carb or ketogenic diet when you have PCOS or hormonal imbalances? 📗 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 ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what does the research actually say specifically for women over 40? ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what does the research actually say for those with hypothyroidism or Hashimoto’s? ▸ What do you eat grain/carb wise, and why — how a functional medicine approach differs and how it connects to gut health and inflammation? ▸ Were any of you guys fans of Journey? How big were they — what the research actually says? ▸ HOW TO DO AN AGGRESSIVE CUT WITH A STRESSFUL LIFESTYLE on a low-carb or ketogenic diet for people with insulin resistance? 📖 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… ▸ Can autophagy regenerate muscle during physically active prolonged fast and how it connects to gut health and inflammation and its effect on metabolism and insulin levels? ▸ If a random dance partner app existed .. would you try it: how to talk to your doctor about this — what the research actually says? ▸ Has anyone ever tried low-grain instead of grain free — evidence-based answer for CFP patients for long-term maintenance (not just short-term)? 📖 Metabolic Reset — The process of retraining your body to utilize stored fat for fuel and regulating hunger hormones so you can maintain yo… 📗 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 ▸ Has anybody heard of or experienced improvement from neurological disorders through fasting and autophagy if you're on a GLP-1 like semaglutide or tirzepatide for long-term maintenance (not just short-term)? ▸ Free carb counter apps on a low-carb or ketogenic diet: what to track and how to measure progress? ▸ Can you really Metformin (6 weeks in) for insulin resistance — can the gut stuff actually get better specifically for women over 40? ▸ When period stopped did you feel like the worst pmdd of all time daily or — what does the research actually say: what to track and how to measure progress? ▸ Were any of you guys fans of Journey? How big were they when you have PCOS or hormonal imbalances? ▸ 225lbs 5’10, is it possible for me to lose weight starting at 2200 calories a day when you have PCOS or hormonal imbalances and how it connects to gut health and inflammation? 📖 Amylopectin A — The specific starch found in modern wheat that causes rapid, dangerous spikes in blood glucose and promotes belly fat st… ▸ How much keto-ade should I safely drink: best practices and common mistakes to avoid and how it connects to gut health and inflammation?