When you strip away all the noise, fat loss comes down to something that sounds a little harsh: your body has to break down its own stored tissue for fuel because there isn’t enough coming in.
It sounds terrible, but that’s exactly what excess body fat is—stored fuel. It’s there because, over time, more calories were consumed than the body needed.
So the first step is simple: create a fuel shortage. We do that through an energy (caloric) deficit, primarily by adjusting nutrition. Exercise and daily movement help, but they contribute a smaller portion of the deficit.
Research consistently shows that when protein and total calories are matched, no specific diet—keto, vegan, carnivore, low-fat, intermittent fasting—produces superior fat-loss results. The macronutrient split doesn’t matter nearly as much as people think.
But here’s the problem:
Telling someone to “eat less and move more” isn’t coaching. People already know that. What they need is a strategy.
Here’s ours:
1) Establish a Caloric Deficit
There’s no way around it. To lose fat, we must create a situation where the body needs to tap into stored fuel.
Despite all the claims about the “best” fat-loss diet, the truth is straightforward: when protein and calories are equated, there is no winner. Even the rise of drugs like Ozempic—whose primary mechanism is appetite suppression—reinforces this point.
The most accurate way to set calories is to have a client eat at what they believe is maintenance for two weeks while tracking intake closely.
- If weight stays stable, we’ve found maintenance.
- If weight changes, we reverse-engineer the food log to determine true maintenance.
- Then we reduce calories by a set percentage to create the deficit.
Summary: When protein and calories are matched, all diets produce the same fat-loss outcomes.
2) Create a Positive Nitrogen Balance
When the body is in a deficit, it will pull energy from its own tissue—but that tissue can be fat or muscle.
Our job is to protect muscle and direct the deficit toward fat stores.
We do this by ensuring adequate protein intake—about 1 gram per pound of bodyweight.
For clients who are significantly under-consuming protein, we may start around 0.75 g/lb and build up. We meet clients where they are.
Research shows that higher protein intake during fat-loss phases can reduce muscle loss by up to 80%.
Protein also has the highest thermic effect of all macronutrients—up to 30% of the calories consumed from protein are burned during digestion. That’s potentially a few hundred extra calories per day with zero additional effort.
Summary: If you want fat loss—not just weight loss—higher protein intake is the closest thing to a “free lunch.”
3) Send an Anabolic Signal Through Intense Exercise
To preserve muscle, the body needs a clear message:
“This tissue is important. Keep it.”
That signal comes from resistance training, performed intensely enough that the last rep of each set approaches your limit.
The stimulus is strength training.
The response is muscle retention—and fat loss.
A 2018 meta-analysis found that resistance training during a fat-loss phase nearly doubled fat loss while preserving muscle compared to dieting alone.
Long-term studies also show that people who lift weights while dieting maintain their metabolic rate, while those who don’t tend to see it drop.
Combined with adequate protein, this creates a protective “fence” around your muscle.
Summary: In a caloric deficit, the primary training goal is to maintain muscle. Strength training is a cheat code.
Use These Principles to Build Effective Fat-Loss Phases
Whether you’re designing a program for a client or for yourself, these three rules form the foundation of sustainable, effective fat loss.
Until next time