Peptide of the Week: GLP-1 Breakdown – Semaglutide vs Tirzepatide vs Retatrutide

Medical Disclaimer: We are not doctors. The content in this video is for educational and informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Any compounds discussed may be intended for research purposes only. Use at your own risk.

Welcome back, warriors! In this episode of Peptide of the Week, JD Denham and William T. Haas break down one of the hottest topics in health right now GLP-1 compounds and the real differences between Semaglutide, Tirzepatide, and Retatrutide.

From how these peptides actually work in the body to why some people feel terrible on certain ones and thrive on others, this episode gives you a real-world, no-BS explanation of what’s going on under the hood.

Chapters:

00:00 – Intro & Hair Talk

01:01 – Podcast Growth & Mission

03:04 – Discipline & Six Pack Mindset

06:36 – Sobriety, Learning & Growth

08:22 – Fear of Failure vs Growth

10:42 – Celebrating Hard Work

11:50 – GLP-1 Breakdown (Basics)

14:57 – How GLP-1 Works (Fat Loss)

19:59 – Semaglutide Explained

22:30 – Tirzepatide Explained

24:30 – Retatrutide Explained

29:01 – Dosage & Protocols

34:48 – Side Effects & Relationships

40:10 – Which One Should You Take

42:14 – Lifestyle Still Matters

We cover:

🧬 How GLP-1 peptides actually work

– GLP-1 is a naturally occurring hormone that signals fullness

– Normally lasts 5–10 minutes after eating

– These compounds extend that signal to days instead of minutes

– Reduce hunger, slow gastric emptying, and regulate blood sugar

🔥 The 3 receptors explained (simple + real)

– GLP-1 → signals fullness, reduces food noise

– GIP → improves insulin efficiency, reduces nausea, enhances fat usage

– Glucagon (GCG) → increases metabolism, burns fat, prevents plateaus

💉 Semaglutide (Ozempic / Wegovy)

– GLP-1 only (full activation)

– Strong appetite suppression

– High nausea for many users

– Fat + muscle loss (indiscriminate)

– ~15–17% average weight loss

– “Skinny but feel like shit” effect if not eating properly

⚖️ Tirzepatide (Mounjaro / Zepbound)

– GLP-1 + GIP

– Much less nausea than semaglutide

– Better insulin function → better nutrient partitioning

– Less muscle loss

– ~20–22% average weight loss

– Still suppresses appetite heavily

👑 Retatrutide (The King)

– GLP-1 + GIP + Glucagon (triple agonist)

– Minimal to no nausea

– Burns fat directly through metabolism increase

– Preserves muscle much better

– Prevents metabolic slowdown (plateau killer)

– ~24%+ weight loss in trials

– You still eat — just get full faster

🧠 Why people feel different on each

– Appetite suppression is actually a side effect, not the goal

– Semaglutide/Tirzepatide = suppress hunger aggressively

– Retatrutide = removes food noise but lets you eat normally

– Better long-term relationship with food

⚠️ Big misconception (IMPORTANT)

– Hair loss, fatigue, etc. are not from the drug

– They come from not eating (malnourishment)

– If you don’t fuel your body → your body breaks down

📉 Why some people think Retatrutide “doesn’t work”

– You feel hunger again → people think it’s failing

– Reality: it’s still burning fat aggressively

– It just doesn’t suppress appetite unnaturally

💪 What actually determines results

– These are tools — not magic

– Results explode when combined with:

– Proper diet

– Training

– Hormone optimization

– Sitting on the couch = minimal results

💡 Real-world takeaway

– Semaglutide works… but rough

– Tirzepatide is better

– Retatrutide is on another level

If your goal is fat loss + performance + longevity, Retatrutide is the clear winner.

🧪 This isn’t theory this is real-world experience working with hundreds of people and seeing what actually works.

📺 Subscribe for more no-fluff peptide education every week.

Follow us on social media:

JD's Instagram: https://www.instagram.com/jd_denham_fit

Will's Instagram: https://www.instagram.com/williamthaas/