FALSE. Fat-burning workouts — that is, workouts that use fat for fuel — don’t guarantee fat loss.
“Burning fat and losing fat aren’t the same thing,” explains exercise physiologist Todd Buckingham, PhD.
To understand the difference, it might help to review how our bodies use energy during exercise.
During low-intensity activity, fat supplies up to 85 percent of the fuel, explains Buckingham. That includes easy jogs, nature walks, and other workouts that you can sustain for prolonged periods.
As the intensity ramps up, the percentage shifts toward carbs.
During moderate-intensity exercise, the split between fat and carbs is nearly equal, Buckingham says. Once you shift into high intensity, your body primarily relies on carbs and, to a lesser extent, a fuel source called creatine phosphate. (Learn more at “All About Your Metabolic Energy Systems.”)
On the surface, lower-intensity workouts look like the fat-loss winner because they burn a greater percentage of fat for fuel. But the fuel source doesn’t determine fat loss, says Janet Hamilton, CSCS, a registered clinical exercise physiologist and certified running coach in Georgia.
Losing fat depends on creating a calorie deficit. This means your body needs to burn more calories than it consumes.
You might have heard this fat-loss concept explained as “calories in versus calories out.”
The theory is that “if you’re taking in more fuel than you need to sustain your life and physical activity demands, your body will store that excess fuel as adipose tissue, or fat,” says Hamilton.
Pitting what you eat against how much and what type of exercise you do is an oversimplification of complex bodily processes — and it can also quickly become unsustainable, setting you up for failure in both your fitness and your fat-loss pursuits.
And while the concept is technically correct, it misses the mark in execution.
The common interpretation of “calories in versus calories out” is to begin counting calories consumed through food and drink as well as those burned in exercise — with the intention of making sure you burn more than you take in.
But the body is more complicated than a machine that eats and exercises. Calories are required to fuel all aspects of daily life. Pitting what you eat against how much and what type of exercise you do is an oversimplification of complex bodily processes — and it can also quickly become unsustainable, setting you up for failure in both your fitness and your fat-loss pursuits.
Fat Loss and Fitness
How the human body holds and releases fat is a multifactorial equation, explains Jeff Rosga, CPT, a Life Time personal training lead and the founder of Life Time Academy. Poor nutrition is a major contributor to fat gain and obesity, as is a sedentary lifestyle.
Factors like sleep quality, stress management, certain health conditions and medications, genetics, and economic stability all contribute. So does access to affordable and nutritious food, physical activity, childcare, education, healthcare, housing and transportation, potable water, and clean air.
In the greater context of these influences, Rosga says, the precise workout you do for fat loss matters less than you might think.
That said, if you are at a point in your journey where the foundational elements of nutrition, movement, sleep, stress, and access are securely in place, it is possible to fine-tune your fitness regimen to support a fat-loss goal. Just remember that a fat-loss-focused workout is not mandatory for changing your health, fitness, or body composition.
A Balanced Body-Recomposition Plan
So, what does an exercise routine tailored to fat loss look like? As it turns out, not very different from any well-balanced fitness plan.
According to Rosga and Hamilton, it includes a combination of strength training and cardio, with a focus on intensity rather than on calorie burn.
Perform two to four days of strength training each week to maintain and build skeletal muscle mass. “Prioritize compound movement exercises, like squats, deadlifts, presses, and rows, that train multiple muscle groups at the same time,” Rosga says.
Additionally, engage in cardio that you enjoy most days of the week, making sure to include a balance of low-, medium-, and high-intensity work.
Says Hamilton: “Using a varied approach to exercise keeps it fun and stimulates your body in a variety of ways while also maximizing your weekly fuel burn.”
This article originally appeared as “True or False: Fat-burning workouts are the best way to lose body fat.” in the July/August 2026 issue of Experience Life.
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