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Build your aerobic system with a safe, scientific and sustainable approach

… for walkers, runners, cyclists and elite athletes

NEW! MAF Express Coaching

30-minute coaching sessions with world champion IRONMAN triathlete and health coach, Pete Jacobs.

MAF Masterclasses

Join the MAF Masters in these recently released video and audio recordings

Join millions of users around the world who follow Dr. Phil Maffetone’s MAF Method to build their maximum aerobic function – a personalized health and fitness methodology that is safe, scientific and sustainable for walkers, runners, cyclists & elite athletes.

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Burn fat for fuel

Dr. Phil Maffetone

Coach / Author / Innovator

Millions of people, from professional athletes in virtually every sport, to people of all athletic abilities have used the MAF Method of Dr. Phil Maffetone to build their fat-burning system.

I was constantly injured and really struggling. This all changed when I met Phil and started training at my MAF Heart Rate. My niggles cleared up and on race day, I destroyed the field!

Mark Allen6 Times World Ironman Champion

Dr. Maffetone is among the most innovative thinkers in the field of exercise science. His training program differs from so many others, with its focus not just on the next race, but on a lifetime of healthy living and exercising.

Tracy Beth Høeg, M.D., PhDPhysician Scientist

Safe. Scientific. Sustainable.

The MAF philosophy empowers individuals with the tools and the guidance to develop and strengthen the aerobic system – the body’s fat-burning engine responsible for supplying stable, long-term energy, leading to reduced body fat, improved physical and mental energy, and resilience to stress and disease.

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MAF Foundations

The MAF Foundations is a 10hr e-learning course, designed for anyone who values their health and fitness to understand their body and optimize their performance to get the most out of life.

MAF Foundations


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The MAF HR+ Earbuds are your in-ear heart rate monitor and fitness tracker that is lightweight, water and sweat resistant with incredible sound quality.

MAF Supplements

MAF Supplements are formulated with freeze-dried fruits and vegetables for a phytonutrient boost. There are no excessive dosages, no artificial additives and contain active vitamins like those found in food.

MAF Supplements

Knowledge base

Over 200 articles, recipespodcasts and research papers on health, nutrition and lifestyle

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April 12, 2022

Researchers find dramatic increase of sudden cardiac death following Covid-19 infection and/or vaccination

Scientists have discovered an alarming increase in the incidence of sudden cardiac deaths in athletes following Covid-19 infection and/or vaccination. In a new scientific paper, “Covid-related athletic deaths: Another perfect…
February 24, 2022

Research Perspective: Rethinking Covid-19 – it’s not a pandemic

With many unanswered questions about what went wrong, scientists and clinicians are rethinking more than Covid-19. (more…)
Athletic Performance
December 13, 2021

Very-low carbohydrate, high-fat diet outperforms high-intensity interval training in lowering body fat

Cardiorespiratory fitness improved with exercise and was not impaired by the VLCHF diet (more…)

Activate your fat burning engine

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