Expert Q&A

Had my hashi’s annihilated thyroid removed today if you're on a GLP-1 like semaglutide or tirzepatide

Understanding Your New Reality After Thyroid Removal

Having your thyroid removed due to Hashimoto’s thyroiditis means your body no longer produces its own thyroid hormones. You will depend on daily levothyroxine or similar replacement therapy for the rest of your life. Most patients need 4-6 weeks for hormone levels to stabilize after surgery before making major medication changes. Starting a GLP-1 receptor agonist like semaglutide (Ozempic, Wegovy) or tirzepatide (Mounjaro, Zepbound) too soon can complicate this adjustment period because both can slow gastric emptying and affect medication absorption.

In my experience working with hundreds of patients in their late 40s and early 50s who carry extra weight, the combination of hypothyroidism history plus perimenopausal or menopausal hormonal shifts makes traditional diets fail repeatedly. This is exactly why my Metabolic Reset Protocol emphasizes stabilizing thyroid labs first before layering in GLP-1 medications.

Timing and Dosing Strategies for Semaglutide or Tirzepatide

Wait at least 6 weeks post-surgery and confirm your TSH, free T4, and free T3 are in optimal ranges (TSH typically 0.5-2.0 mIU/L for most on replacement). Begin GLP-1 therapy at the lowest possible dose: 0.25 mg weekly for semaglutide or 2.5 mg for tirzepatide. Take your thyroid medication first thing in the morning on an empty stomach and wait a full 4 hours before your GLP-1 injection to prevent absorption interference. Many of my patients notice that the appetite-suppressing effects of these medications help them naturally reduce calorie intake by 400-600 calories per day without feeling deprived.

Monitor closely for gastrointestinal side effects, which can be more pronounced after thyroid surgery because of altered metabolism. Nausea, constipation, and reflux are common in the first 4-8 weeks. Pairing the medication with 25-30 grams of protein per meal and 30 grams of fiber daily dramatically reduces these issues. My protocol includes a simple 7-day starter meal plan that fits busy middle-income schedules and avoids complex prep.

Managing Joint Pain, Blood Sugar, and Blood Pressure on GLP-1s

One of the biggest wins for patients with joint pain is that losing even 5-10% of body weight (often 8-15 pounds in the first 8 weeks on tirzepatide) significantly reduces pressure on knees and hips. Studies show semaglutide users with type 2 diabetes or prediabetes see average A1C drops of 1.5-2.0 points and systolic blood pressure reductions of 5-8 mmHg. Because insurance rarely covers weight-loss programs, these once-weekly injections have become a practical tool when combined with my sustainable lifestyle framework rather than relying on them alone.

Focus on strength training twice weekly using bodyweight or resistance bands for 20 minutes. This preserves muscle mass that GLP-1 medications can otherwise reduce by up to 40% of total weight lost if resistance work is ignored. Track body composition monthly rather than just the scale.

Long-Term Success and What Most Patients Experience

Patients who follow my Metabolic Reset Protocol while on GLP-1 therapy typically lose 15-25% of starting body weight over 12-18 months and maintain it by gradually tapering the medication once new habits are locked in. The key is rebuilding metabolic flexibility so hormonal changes no longer drive regain. Get labs every 8-12 weeks initially, stay hydrated with 80-100 ounces of water daily, and supplement electrolytes to prevent fatigue. Most importantly, address the emotional side of lifelong obesity shame by focusing on energy and health markers rather than rapid scale drops.

Work closely with your endocrinologist and never adjust thyroid or GLP-1 doses without guidance. When used thoughtfully, these medications can finally break the cycle of failed diets for those of us navigating post-thyroidectomy life in midlife.

💬 What the Community Says

The community shows cautious optimism about starting semaglutide or tirzepatide after total thyroidectomy for Hashimoto’s. Many in the 45-55 age group report finally losing weight after years of stalled progress once thyroid levels stabilized, with typical first-month losses of 8-12 pounds. A common theme is the need to separate thyroid medication timing from GLP-1 injections by several hours to avoid absorption problems. Joint pain relief is frequently mentioned as an early benefit, though some experience amplified nausea or constipation in the beginning. Debates center on long-term muscle loss and whether the drugs can be tapered successfully; most agree combining them with protein-focused eating and light resistance work yields better outcomes. Insurance hurdles and endocrinologist coordination remain frequent frustrations, but lived experiences suggest the combo can work when labs are monitored every 6-8 weeks. A vocal minority warns against rushing the start date post-surgery, recommending at least a 6-8 week buffer.
Cite this answer
Clark, R. (2026). Had my hashi’s annihilated thyroid removed today if you're on a GLP-1 like semag. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/had-my-hashi-s-annihilated-thyroid-removed-today-if-you-re-on-a-glp-1-like-semaglutide-or-tirzepatide
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
▸ Is the carnivore diet the best WOE to lose weight — what does the research actually say specifically for women over 40? ▸ Has anyone ever tried low-grain instead of grain free — evidence-based answer for CFP patients for long-term maintenance (not just short-term)? ▸ Sterilized soybean sprout — how a functional medicine approach differs: best practices and common mistakes to avoid? ▸ How do you handle social settings and conversations with other people — what does the research actually say on a low-carb or ketogenic diet? ▸ 42yom Im finding it much harder to lose weight, what are some things I can do now to start losing weight? ▸ How does chasing skinny ever get old for long-term results while doing intermittent fasting? ▸ 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? 📖 Visceral Fat — The dangerous 'hidden' fat stored around internal organs that drives chronic disease and is specifically targeted by our… ▸ 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: best practices and common mistakes to avoid? ▸ What foods to stock for overnight guest — 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 ▸ Did L. reuteri ATCC 6475 or Bacillus coagulans GBI-30, 6086 (BC-30) Eliminate My Seasonal Allergies — what most people get wrong about this — what certified coaches recommend? ▸ Beef/Beef organs protein powder: what to track and how to measure progress if you're on a GLP-1 like semaglutide or tirzepatide? 📖 Inflammatory Markers — Clinical indicators like CRP that we monitor to ensure the body is moving from a state of disease to a state of vibrant … ▸ Compression socks. Worth it? Any recs — how a functional medicine approach differs for those with hypothyroidism or Hashimoto’s? ▸ Low TSH, Low T4, and Low T3 simultaneously on Levothyroxine — anyone experienced this and the role of cortisol and stress hormones on a low-carb or ketogenic diet? ▸ Should I be worried yet, been sitting for 5 days no movement while doing intermittent fasting: best practices and common mistakes to avoid? ▸ I have an iodine deficiency. Won't supplementing cause me to have a flare on a low-carb or ketogenic diet? ▸ Sugar free 2020, who's with me — what most people get wrong about this: what to track and how to measure progress? ▸ Anyone remember the metal lid you had to use a butter knife to pop off: what to track and how to measure progress while doing intermittent fasting? 📖 Rebound Weight Gain — The common 'yo-yo' effect caused by high-dose, continuous GLP-1 use; we prevent this through strategic cycling and metab… ▸ Were any of you guys fans of Journey? How big were they 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 ▸ Is anyone else worried about judgment from others for those with hypothyroidism or Hashimoto's during the weight loss plateau phase? ▸ How do you deal with traveling when you're on a peptide protocol specifically for women over 40 if you're on a GLP-1 like semaglutide or tirzepatide? ▸ My weight loss progress so far as a 23 year male who stared eating less unhealthy and does little to moderate exercise. Am I doing well — evidence-based answer for CFP patients for people with insulin resistance? 📖 Metabolic Efficiency — The state where your body processes fuel cleanly and maintains high energy levels without the need for constant snacking… ▸ What are the wegovy doses in order on a low-carb or ketogenic diet when you have PCOS or hormonal imbalances? ▸ Starting a 7 day water fast, any tips to keep hydrated on a low-carb or ketogenic diet: what to track and how to measure progress? ▸ Is it normal to lose weight then gain again when you have PCOS or hormonal imbalances for long-term maintenance (not just short-term)? ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what does the research actually say and its effect on metabolism and insulin levels? ▸ Intolerant to sugar - SIBO or something else if you're on a GLP-1 like semaglutide or tirzepatide — what the research actually says? 📖 Smart Cycling — The strategic alternating of medication doses with planned 'off' periods to prevent receptor desensitization and ensure … ▸ How much keto-ade should I safely drink: best practices and common mistakes to avoid and how it connects to gut health and inflammation? 📗 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 ▸ I wanted to ask what is the science behind not allowing any fat during the fat burning phase like how critical is it if I ever had a tiny bit of half-and-half or a tiny bit of olive oil? Is it really do something to the body. ▸ 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 TO DO AN AGGRESSIVE CUT WITH A STRESSFUL LIFESTYLE on a low-carb or ketogenic diet for people with insulin resistance? 📖 Tirzepatide Micro-Dosing — The practice of using the lowest effective dose to achieve results, minimizing side effects while maximizing the longevi… ▸ How many were first diagnosed with OCD if you're on a GLP-1 like semaglutide or tirzepatide for people with insulin resistance? ▸ Fitter or kidding myself: how to talk to your doctor about this if you're on a GLP-1 like semaglutide or tirzepatide? ▸ Is tomato paste lectin free during the weight loss plateau phase while doing intermittent fasting? ▸ LDN is changing my life, will this last: best practices and common mistakes to avoid: what to track and how to measure progress? ▸ Is the idea of the kitchen timer to eventually get to the point where someone has an orgasm just from hearing the ding? Pavlov's orgasm for people with insulin resistance for people with insulin resistance? 📖 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… 📗 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 ▸ Im eating so well that I accidently put my body in ketosis and how it connects to gut health and inflammation: best practices and common mistakes to avoid? ▸ 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? ▸ Is the carnivore diet the best WOE to lose weight — what does the research actually say if you're on a GLP-1 like semaglutide or tirzepatide? 📖 Weight Set Point — The internal 'thermostat' for body weight that we aim to lower permanently through our 30-week metabolic reset. ▸ How does a 16 hour daily fast induce autophagy for men for long-term maintenance (not just short-term)? ▸ Thyroid tests all in range— but high calcium — how a functional medicine approach differs during the weight loss plateau phase? ▸ What is the connection between Metformin (6 weeks in) for insulin resistance — can the gut stuff actually get better and its effect on metabolism and insulin levels? 📖 Hidden Hunger — A state where the body is overfed but undernourished, leading to constant cravings because the brain isn't receiving the… ▸ Got diagnosed today, where do i go from here — what do certified weight loss coaches recommend: best practices and common mistakes to avoid? ▸ I sometimes feel like people only talk about the obvious symptoms like irregular periods or weight gain, but the fatigue can be just as overwhelming. Has anyone else felt completely drained even: how to talk to your doctor about this: best practices and common mistakes to avoid? 📗 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 ▸ When do you know to go to the hospital specifically for women over 40? 📖 CICO (Calories In, Calories Out) — An outdated model of weight loss that ignores the role of hormones; we challenge this by focusing on food quality and ho… ▸ Difference between a 3 day and 5 day water fast for autophagy and the role of cortisol and stress hormones for people with insulin resistance? ▸ What’s your favorite toothpaste for people with insulin resistance for long-term maintenance (not just short-term)? ▸ Is it okay for teenagers to do longterm lowcarb/keto — evidence-based answer for CFP patients for those with hypothyroidism or Hashimoto’s? ▸ Omnipod. Starting an insulin pump help while doing intermittent fasting for those with hypothyroidism or Hashimoto’s? ▸ Do yall ever daydream of who you were before your diagnosis when you have PCOS or hormonal imbalances when you have PCOS or hormonal imbalances? 📖 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… ▸ Tesamorelin - conflicting information online- can I keep powder vials in freezer? Can I keep reconstituted vials in fridge — what do certified weight loss coaches recommend for those with hypothyroidism or Hashimoto’s?