Expert Q&A

What 1 year of Zepbound did to me… while doing intermittent fasting

My Starting Point: Frustration After Decades of Failed Diets

At 49, I had tried every diet imaginable. Low-carb, keto, calorie counting—nothing stuck. Hormonal changes in perimenopause made every pound feel impossible to lose. My joints ached so badly that even walking the dog felt like torture, and my type 2 diabetes and high blood pressure required multiple daily medications. Insurance denied coverage for weight loss programs, leaving me embarrassed and overwhelmed by conflicting nutrition advice. I needed something sustainable that fit my middle-income lifestyle and busy schedule.

Starting Zepbound Alongside 16/8 Intermittent Fasting

I began Zepbound (tirzepatide) at the recommended 2.5 mg dose while adopting a simple 16/8 intermittent fasting window—eating between 12 pm and 8 pm. This approach from my book The Fasting Reset emphasizes gentle entry points for beginners. Zepbound curbed my appetite dramatically within two weeks, while fasting improved my insulin sensitivity. I kept meals straightforward: high-protein plates with vegetables, healthy fats, and minimal processed carbs. Total daily calories averaged 1,500-1,800 without obsessive tracking.

Transformative Results After 12 Months

After one year, I lost 87 pounds—dropping from 246 to 159. My A1C fell from 8.2 to 5.7, eliminating two diabetes medications. Blood pressure normalized, and joint pain decreased by about 70%, allowing daily 30-minute walks without exhaustion. Hormonal symptoms eased as visceral fat reduced; energy levels stabilized without the crashes I once experienced. Intermittent fasting enhanced Zepbound's effects on GLP-1 and GIP receptors, promoting better metabolic flexibility. I regained confidence—no more avoiding social events due to embarrassment about my obesity.

Key Lessons and Sustainable Practices for Long-Term Success

The combination taught me that consistency beats perfection. I adjusted Zepbound to 10 mg by month six for optimal results, always under medical supervision. To combat plateaus, I incorporated strength training twice weekly using resistance bands at home—joint-friendly for beginners. Hydration reached 100 ounces daily, and I prioritized 100 grams of protein to preserve muscle. For those managing diabetes and blood pressure, regular monitoring is crucial as weight drops. My book outlines how pairing GLP-1 medications with time-restricted eating creates synergy without complex meal plans. Start small, track non-scale victories like better sleep and reduced cravings, and remember: this isn't another failed diet but a metabolic reset that fits real life.

💬 What the Community Says

Users on forums like Reddit's r/Mounjaro and r/intermittentfasting frequently share stories of combining Zepbound with 16/8 or 18/6 fasting windows. Many in the 45-55 age group report 60-100 pound losses over a year, noting faster visceral fat reduction and easier blood sugar control. Joint pain relief is a recurring theme, with several saying they could finally exercise after months of inactivity. However, the community is split on side effects—some experience manageable nausea that fades, while others struggle with fatigue or hair shedding. A vocal minority debates whether fasting is necessary with Zepbound, citing studies showing additive benefits for insulin resistance. Insurance barriers and high out-of-pocket costs frustrate middle-income members, though many appreciate the simplicity of not needing elaborate meal preps. Overall, lived experiences highlight renewed hope after years of diet failures, but most emphasize working with doctors for dose titration and nutrient monitoring.
Cite this answer
Clark, R. (2026). What 1 year of Zepbound did to me… while doing intermittent fasting. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/what-1-year-of-zepbound-did-to-me-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.

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