REBUILD YOUR BODY.
RECLAIM YOUR HEALTH.
Helping adults over 40 lose weight, build strength, and take control of their health.
DOES THIS SOUND FAMILIAR?
You don't recognize yourself in the mirror.
Your clothes don't fit the way they used to.
Your doctor says you need to lose weight.
You're worried about prediabetes, Type 2 diabetes, or heart disease.
You want your energy and confidence back.
THE GOOD NEWS?
I help adults over 40 lose weight, build strength, and improve their health.
With more than 50 years of coaching experience, I'll help you create a practical plan that fits your life—not someone else's.
READY TO REBUILD?
During your private 45–60-minute Iron Strategy Session, we'll identify what's holding you back and create a practical plan to help you lose weight, build strength, look your best, and reclaim your health.
Your session takes place privately on Google Meet.
I'll personally contact you by email within 24 hours to schedule your session.
TAKE CONTROL NOW!
JOIN THE IRON SENSEI COMMUNITY
Receive weekly fitness, nutrition, and health tips, our monthly digital magazine, and the Diabetes Remission Report.
HOW THE IRON REBUILD PROGRAM WORKS
1
The Hallandale Diet
Start with proven nutrition and simple meal plans.
2
Personal Strategy Session
Meet live on Zoom to build your custom plan.
3
Training & Coaching
Workouts, nutrition guidance, and weekly coaching to build lasting habits.
4
Rebuild Your Life
Become leaner, stronger, healthier, and more confident. Build the discipline to make it last.
THE IRON REBUILD PROGRAM
This isn't another diet.
It's a step-by-step system designed specifically for men and women who want to reclaim their health, strength, and confidence.
We begin with The Hallandale Diet, my proven nutrition program. Using the book, calorie-based meal plans, and simple food choices, you'll start rebuilding your body from the inside out.
Next, we'll develop a personalized strategy during a live Google Meet session. Together we'll assess your goals, identify what's holding you back, and create a realistic plan that fits your life.
Then we put it into action with nutrition, training, weekly coaching, and practical guidance to help you build lasting habits—not quick fixes.
REBUILD YOUR BODY. RECLAIM YOUR LIFE.
JONATHAN LOWELL
THE IRON SENSEI
For more than 50 years, Jonathan Lowell has dedicated his life to the pursuit of strength, discipline, and human performance.
A graduate of the Swedish Institute of Massage Therapy with a background in exercise physiology and sports science, he trained under legendary masters Peter Urban and Morio Higaonna while also training alongside bodybuilding legends Harold Poole and Chris Dickerson.
A California State Silver Medalist and multiple East Coast champion, Jonathan went on to build one of America's Top 100 martial arts schools, helping thousands of students develop confidence, resilience, discipline, and character.
Today, through Iron Rebuild, he combines a lifetime of martial arts, fitness, nutrition, bodywork, and coaching experience to help men and women over 40 become leaner, stronger, healthier, and more confident. It's never too late to rebuild.
Photo at right:
Jonathan Lowell with his Sensei, Morio Higaonna, one of the world's most respected Goju-Ryu karate masters.
THE IRON SENSEI IN ACTION
Before coaching thousands of students and creating Iron Rebuild, Jonathan Lowell spent years competing on the tournament circuit.
This footage captures part of that journey and reflects the discipline, commitment, and fighting spirit that continue to shape his coaching today.
"Jonathan has an exceptional ability to teach, motivate, and bring out the best in people. His influence has stayed with me throughout my military career."
Navy Commander
Donald B. US Navy
Jonathan's teaching went far beyond techniques. He challenged me to become stronger, more disciplined, and more confident. Training under him changed my life, and becoming one of his instructors remains one of my proudest accomplishments."
Lt. Col. Edwin C.
U.S. Army (Ret.)
"Training under Lowell Shihan for many years changed the way I approached challenges both inside and outside the dojo. As one of his assistant instructors, I witnessed firsthand his dedication to every student and his ability to bring out the best in people. His knowledge, leadership, and friendship have had a lasting impact on my life."
Charles H.
Assistant Instructor
"I never thought I could get back into shape after 50, but Lowell Sensei showed me that it was possible. His coaching was encouraging, practical, and tailored to my goals. I feel stronger, healthier, and more confident than I have in years."
Susan M.
Iron Rebuild Client
