2840: Breakthrough Muscle Building Peptides with Jay Campbell

Mind Pump: Raw Fitness Truth

Sal Di Stefano, Adam Schafer, Justin Andrews, Doug Egge

Health & Fitness, Fitness

4.8 • 12.6K Ratings

🗓️ 20 April 2026

⏱️ 78 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

Jay Campbell is BACK... and this time he's talking about all the cutting edge peptides for building muscle. We're talking follistatin derivatives with 19 day half lives, super retatrutide that you might only need to inject once every TWO MONTHS, and why these compounds could be the future of building lean mass without the brutal side effects.

Jay tells stories about the legendary Dan Duchaine. You'll learn the REAL history of cyclical ketogenic dieting, why going zero carb all week then carb loading on weekends was revolutionary for bodybuilders in the 90s.

Here's where it gets controversial... Jay explains why aromatase inhibitors are absolutely DESTROYING modern bodybuilding physiques.

SPONSORS

Huel — huel.com/mindpump

MP Hormones — mphormones.com

MAPS PPL — mapsppl.com

KEY TOPICS

• Cyclical ketogenic dieting protocol: zero carb Monday through Friday, depletion workout Saturday morning, then unlimited carbs until Sunday night

• Long term ketogenic dieting can retard insulin metabolism and increase A1C levels even without eating carbs

• Aromatase inhibitors prevent bodybuilders from achieving true shredded condition by blocking fat loss below 7 to 8% body fat

• Estrogen ratio to testosterone matters more than absolute estrogen levels for men on TRT

• New follistatin derivative FLGR has a 19 day half life and binds only to non organ sensitive androgen receptors

• Super retatrutide may only require injection once every two months due to extended efficacy

• Dan Duchaine pioneered the ephedra caffeine aspirin stack and introduced carb cycling to bodybuilding

• High dose insulin combined with carbohydrate manipulation was the real secret of 90s mass monster physiques

TIMESTAMPS

0:24 Jay Campbell

1:42 Dan Duchaine

5:21 The cyclical ketogenic diet

6:26 crash test dummy research

7:52 long term keto

9:21 carb loading protocol

11:54 Insulin resistance symptoms

14:26 Why AIs are destroying physiques

18:58 New follistatin FLGR peptide

27:15 Recovery Stack

32:46 Bio Regulators and Prostate Peptides

35:33 Legal Gray Area

39:48 Company Operations Explained

40:38 New Hair and Face Launch

41:41 GLP Patent Crackdown

44:07 Small Molecules

45:29 Microdosing GLP Side Effects

48:40 Antitrust and Innovation Fears

51:09 Bodybuilding

52:50 Klotho Anti Aging Breakdown

59:42 Cerebrolysin Brain Benefits

01:07:13 Jail Story

01:16:11 Product Timeline

PEOPLE MENTIONED

Jay Campbell — Guest and peptide expert who specializes in cutting edge hormone optimization

Dan Duchaine — Legendary bodybuilding guru who wrote The Underground Steroid Handbook and pioneered the ECA stack and carb cycling

Mauro DiPasquale — Doctor who wrote The Anabolic Diet book and was instrumental in low carb bodybuilding research

Lyle McDonald — Author of the cyclical ketogenic diet book who Jay describes as brilliant but crazy

Hans Hobstock — Bodybuilder who appeared on the cover of Dan Duchaine's Body Opus book and trained at Jay's gym

Ben Pakulski — Professional bodybuilder who described aromatase inhibitors as the worst drugs he ever took

Charles Poliquin — Strength coach referenced for his quote about earning your carbs through training

Paul Saladino — Carnivore diet advocate who changed his position to include honey and fruit

Transcript

Click on a timestamp to play from that location

0:00.0	If you want to pump your body and expand your mind, there's only one place to go.
0:06.3	Mind Pump.
0:07.1	Mind Pump with your hosts.
0:09.2	Sal DeStefano, Adam Schaefer, and Justin Andrews.
0:13.4	You just found the most downloaded fitness, health, and entertainment podcast.
0:16.6	This is Mind Pump.
0:18.2	Today's episode, we have Jay Campbell back on.
0:21.6	He's like the black market, gray market, legal market, peptide guru.
0:26.3	This is the guy that talks about things everybody else is afraid to talk about.
0:29.6	He's always on the cutting edge, bringing things to light.
0:32.7	And today in this episode, we talk about some muscle-building peptides that are breakthrough peptides,
0:39.5	ones that are brand new, that promise to do some pretty wild things.
0:44.2	And you'll hear that in this episode, among other things.
0:47.4	Now, this episode is brought to you by a sponsor, Hewled.
0:50.5	So they make meal replacement shakes that are non-dairy that taste delicious. These are
0:56.5	vegan shakes, high in protein that are good meal replacements. If you want a quick meal in the
1:01.0	morning or in the mid-afternoon, if you have protein targets you're trying to hit because you
1:05.7	want to build muscle, of course, or help yourself get leaner, try Huel. Again, it's delicious, It's easy. And you can get 15% off. Go to Huell.com. That's Huell.com forward slash mind pump. The code mind pump gets you 15% off. Also, we have a brand new workout program, Maps PPL. It's a three-day split, push, pull legs. And because it's a brand new
1:28.9	program, it's 40% off. Go to Maps ppl.com. Use the code PPL for the 40% off discount.
1:36.1	All right, real quick, if you love us like we love you, why not show it by rocking one of our
1:40.2	shirts, hats, mugs, or training gear over at Mind Pumpstore.com. I'm talking right now, hit pause, head on over to mindpumpstor.com. That's it. Enjoy the rest of the show. Jay, welcome back to the show, dude. Always a good time. Always a good time. Always fun talking to you. I like to refer to you as the modern Dan Duquesne. You're my guy.
2:02.1	It is a huge compliment.
	...

Please login to see the full transcript.

Previous episode | Next episode

Disclaimer: The podcast and artwork embedded on this page are from Sal Di Stefano, Adam Schafer, Justin Andrews, Doug Egge, and are the property of its owner and not affiliated with or endorsed by Tapesearch.

Generated transcripts are the property of Sal Di Stefano, Adam Schafer, Justin Andrews, Doug Egge and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.