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Join Blain Duesing, personal trainer and high-intensity training expert, and Dr. John D’Ambrosio, chiropractor and author of Fasting That Works, as they cut through the noise of the fitness industry. With decades of combined experience, Blain and John bring casual, laugh-filled conversations that debunk bro science, expose misleading fitness trends, and reveal what actually works for building strength, losing fat, and optimizing health. If you’re tired of conflicting advice, gimmicky workouts, and influencer nonsense, this is your show. Real expertise, real talk, zero BS.

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Check latest episodes from Fitless podcast

Today we interview Ryan Lackey, one of Blain's clients who has put on 15lbs of muscle in 6 months of training. We learn about his fitness journey and how HIT has changed his life!

2026/10/14

This episode features Ryan Lackey, a client of Blain's who has gained 15lbs of muscle in 6 months training HIT, most of that time one session a week. We discuss training methods, the recent switch to a split (which is given by Blain), and how this training methodology has positively influenced Ryan's quality of life on so many levels. This is an extremely candid and informative episode that fitness veterans and newbies can all benefit from!

Deep Fitness deep dive with the authors, Philip Shepherd and Andrei Yakovenko

2026/10/07

Blain and John interview authors Philip Shepherd and Andrei Yakovenko on the 5th anniversary of the release of their groundbreaking book, Deep Fitness. We discuss exercise, science, myokines, mindfulness, high intensity training, 10 minute leg presses and more!

John and Blain discuss questions and comments from our Dr. Doug McGuff interview and more!

2026/09/30

In this episode, Blain and John address some of the questions and comments received regarding our interview with Dr. Doug McGuff as well as our collective experiences at Discover Strength. Genetic potential, training, recovery and more are covered today!

Fitless Episode 17 - We welcome Katie Sage to the studio. Katie is an HIT trainer with 9 years under her belt and mentored and worked alongside the legendary Roger Schwab

2026/09/16

This episode has us picking the brain of Katie Sage. Katie's almost decade long experience with HIT, which started with mentoring with Roger Schwab, who worked closely with Arthur Jones, is full of great information for everyone. If you're a female who wants to train efficiently, safely, and who is looking to get the most bang for her buck without hours of endless cardio and bootcamp classes, this episode is going to be a game changer for you!

Fitless Episode 16

2026/09/09

John and Blain talk about a day in the life of a trainer, the importance of diet, machine quality and if it makes a difference, and the GLP issues that most people don't know. Tune in and learn what the rest of the fitness industrywon't discuss!

Fitless Episode 15

2026/09/02

Blain and John welcome Dr. Doug McGuff to the studio today! In case you haven't heard the co-author of Body by Science speak, you don't want to miss this! He is arguably THE expert in high intensity training and fitness medicine. He is a practicing physician, consultant, speaker, teacher, author, and trainer. Be a fly on the wall while we pick his brain regarding all things training!

Fitless Episode 14

2026/08/26

John and Blain welcome a very special guest, Lawrence Neal onto the show. Lawrence is an amazing fitness podcaster and owner of High Intensity Business. The knowledge he shares from over a decade of interviewing some of the top people in the High Intensity Training world is priceless! Don't miss this one!

Fitless Episode 13

2026/08/19

Blain and John discuss the importance of diet, nutrition, and recovery. They touch on fasting, proper eating, and why you can't out exercise a bad diet.

Fitless Episode 12

2026/08/12

Blain and John bring on a special guest, Rich Lancellot! Rich is one of Blain's clients and has experienced tremendous success with High Intensity Training while working with Blain, including a physique-changing loss of 40lbs and continued strength and muscle gain! Tune in to learn how he accomplished this!

Fitless Episode 11

2026/07/22

Join Blain and John this week with our special guest, Steve McKinney! This amazing trainer, author, pastor and more talks about training, his multiple books, and helps us break multiple fitness myths! Don't miss this eye-opening episode!

Fitless Episode 10

2026/07/15

John and Blain discuss the perfect exercise conundrum, repetition speed, and so much more! Listen in and learn!

Fitless Episode 9

2026/07/08

Blain and John discuss muscle confusion, making exercise part of your identity, and more! Listen in for some solid information.

Fitless Episode 8

2026/07/01

John and Blain discuss the famous Project Total Conditioning conducted in 1975 at the United States Military Academy at West Point by Arthur Jones. This single study dismantles functional fitness...listen in and learn!

Fitless Episode 7

2026/06/24

John and Blain welcome Matt Greene to the podcast! We discuss training, Matt's past as a marathoner and ultra-marathoner, and how he connected with Hight Intensity Training (HIT) and the ways it changed his life!

Fitless Episode 6

2026/06/17

Blain and John discuss recovery, unilateral training, and more! Learn, be entertained, and train smarter!