NY Times Best-Selling Author

Live Your
Greatest Health.

World-renowned nutrition expert, global product formulator, international speaker and community builder, empowering millions across 60+ countries to transform how they look at food, gut health and life.

Mark Macdonald speaking on stage
 
★
10,000+
Media
Appearances
MM
By The Numbers
30+
Years
of Impact
60+
Countries
Reached Globally
10M+
Lives
Empowered
ON AIR
 
Featured Nutrition & Fitness Expert On
 
ABCCNNCBSNBCFOX NEWS
HLN/Dr. Oz Show/Tamron Hall/Tennis Channel/Chelsea Lately/Access Hollywood/Brinx.TV
MM
 
Meet Mark

Husband. Dad.
World Changer.

Most importantly, I’m a husband to Abbi, and dad to Hunter and Hope. Professionally, I’m a world-renowned nutrition and fitness expert, NY Times best-selling author, media personality, international speaker and entrepreneur.

“My life’s mission is to change how the world looks at food, empowering people to live their greatest health.”

Over 30 years, I’ve led health movements in 60+ countries across 6 continents, partnering with thousands of organizations and empowering millions of people.

More About Mark
Mark Macdonald with his family
Since 2000
25+ Years
of Impact
 
Mark's Story

Watch the Mission
in Action

See how Mark has spent 30+ years changing lives, one person, one community, one country at a time.

60+
Countries
10M+
Lives Touched
30+
Years

 
How We Work Together
 

Transform Your Life

01
◎

Speaking Experiences

High-impact keynotes and workshops that ignite health movements inside your organization or at your next event.

Book Mark →
02
✓

100 Days of 1%

Mark’s signature program — small daily shifts compounding into permanent, life-changing transformation.

Join the Program →
03
📅

Coaching With Mark

1-on-1 and group coaching to build your personalized nutrition and fitness strategy that fits your real life.

Get Started →
04
🏢

Workplace Wellness

Proven corporate wellness frameworks that reduce sick days, boost productivity, and build lasting culture.

Learn More →
05
📖

Mark's Books

NY Times bestsellers that have changed how millions think about food, body, and health for good.

Shop Books →
06
▶

Media Hub

TV episodes, interviews, and videos — Mark’s global media presence and content library at your fingertips.

Watch Now →
“
 
Real Results
 

Lives Transformed

★★★★★

“Mark’s approach completely changed how I see food. I lost 40 pounds and kept it off for 3 years. This isn’t a diet — it’s a new way of living.”

SL
Sarah L.
100 Days of 1% Graduate
★★★★★

“We brought Mark in for our company’s wellness summit. The energy, the message, the results — our team is still talking about it months later.”

JR
James R.
HR Director, Fortune 500
★★★★★

“I’ve read every health book on the market. Mark’s work is different. It’s practical, science-backed, and actually works in a real, busy life.”

TC
Tanya C.
Coaching With Mark Client
“
The Books

The Books That
Changed Millions.

“The definitive guide to understanding your body and reclaiming your health — for good.”
Shop the Books
Mark Macdonald Books
2×
NY Times
Bestseller

“Your greatest health is one decision away.”

Mark Macdonald
Begin Your Journey
MM
Mark Macdonald

World-renowned nutrition expert, bestselling author and international speaker helping people transform the way they think about food, health and what is possible in their lives.

Book Mark Contact
Follow Mark
Join Mark across speaking, coaching, products and media.
Media
Featured
Explore Mark’s books, wellness products and favorite resources.
Copyright 2026 Mark Macdonald. All rights reserved.