Body Recomposition: How to Lose Fat and Build Muscle at the Same Time

Body recomposition is the process of simultaneously reducing body fat and building lean muscle. It requires a specific combination of strength training, adequate protein intake, and structured recovery. And at SOMA, every recomposition program starts with a full-body assessment consisting of lean mass scans, posture analysis, and movement screening, so your program is built around your actual body.

You’ve been training consistently, and the scale hasn’t moved much, but your clothes fit differently, your shoulders look more defined, and your waist feels smaller.

So it’s genuinely confusing when the numbers on the scale don’t change.

But that’s not a failure; that’s body recomposition working.

Most people don’t know there’s a word for what they’re actually trying to achieve.

They think fitness means losing weight. They track kilograms, hit a plateau, and assume something is broken. In reality, the number on the scale is one of the least useful metrics you can follow, especially if your goal is to look and feel fundamentally different.

Body recomposition is the goal most people are chasing without knowing it has a name. And in 2026, it’s the fastest-growing framing shift in how Australians are approaching their fitness.

What is Body Recomposition, Exactly?

Body recomposition refers to the simultaneous reduction of body fat and increase in lean muscle mass. Unlike a traditional fat loss phase (eating in a calorie deficit, losing both fat and some muscle) or a muscle-building phase (eating in a surplus, gaining muscle with some fat), recomposition aims to do both at once.

It sounds like it shouldn’t be possible, since you need a calorie surplus to build muscle and a calorie deficit to lose fat.

So how can you do both?

The answer lies in how your body partitions energy. When training stimulus is high, protein intake is sufficient, and recovery is structured, your body can use stored fat as fuel for muscle repair and growth. You’re essentially redirecting energy from where it’s stored to where it’s needed.

Research supports this. A 2020 study by Barakat et al., published in Strength & Conditioning Journal, found that trained individuals can achieve measurable body recomposition, particularly when protein intake is high and resistance training is progressive.

The effect is strongest in people who are newer to structured training, returning after a break, or moving from inconsistent training to a structured program, all of which describes a large portion of SOMA’s members.

Why Most Training Approaches Fail at Body Recomposition

The majority of gym-goers fail at recomposition because their approach is optimised for the wrong outcome. The most common mistakes:

• Chasing the scale. When weight loss is the goal, the instinct is to eat less and do more cardio. This burns calories, but it also signals to your body that muscle is expensive and worth sacrificing. You lose fat and muscle together, which changes the number but not the shape.
• Not training with enough intensity or structure. Recomposition requires progressive overload. Consistently increasing the demand placed on your muscles over time. Three sets of whatever machine feels comfortable is maintenance at best.
• Eating too little protein. This is the most common nutritional mistake. Without sufficient protein, your body has no raw material to repair and build muscle tissue. Calories are being cut, but the macros aren’t being managed, so fat loss comes at the cost of lean mass.
• Neglecting recovery. Muscle is built during the repair window afterward. If recovery is poor, whether that’s from inadequate sleep, insufficient nutrition timing, or accumulated fatigue, that window is compromised. You train but don’t adapt.

The 3 Pillars of Body Recomposition

1. Strength Training

Body recomposition is built on resistance training; it’s specifically progressive overload with compound movements.

Squats, deadlifts, rows, presses, and carries train the largest muscle groups, create the most metabolic demand, and drive the most significant body composition changes. Done progressively, they signal to your body to hold onto lean muscle while using fat as a fuel source.

The ACSM (American College of Sports Medicine) recommends resistance training at least 2 days per week for body composition improvements, with greater frequency producing greater results in trained individuals. 3–4 sessions per week is a realistic and effective target for most professionals.

The SOMA approach to strength training for body recomposition starts with a full movement and posture assessment before any programming begins. That matters because most people training for years have imbalances they aren’t aware of, and training hard around an imbalance can injure you.

2. Protein

Protein is the most important dietary variable in body recomposition. Without it, the other work is incomplete.

The International Society of Sports Nutrition (ISSN) recommends a daily protein intake of 1.6–2.2 grams per kilogram of body weight for individuals seeking to optimise muscle building and fat loss simultaneously.

For a person weighing 75 kg, that’s 120–165 grams of protein per day, significantly more than most people are consuming.

Hitting your protein target most days, spread across meals, is more important than any specific food choice or timing protocol. Whole food sources such as chicken, fish, eggs, Greek yoghurt, and legumes, should form the foundation, with protein shakes filling genuine gaps and not replacing meals.

Protein also matters for satiety. Higher protein intake reduces hunger, which makes staying in a slight calorie deficit easier without feeling deprived. That’s how body recomposition allows you to eat enough to support muscle growth while still creating the conditions for fat loss.

3. Recovery

This is the pillar most people ignore, and it’s the one that determines whether your training produces results.

Sleep is the most undervalued recovery tool. During deep sleep, growth hormone is released, tissue is repaired, and the adaptations from training are consolidated. Consistently poor sleep (which is sadly the norm for plenty of CBD professionals) directly blunts your ability to change body composition, regardless of how hard you train.

Active recovery methods, including infrared sauna, cold therapy, and contrast therapy, support this process. SOMA’s recovery centre was built with this in mind.

When recovery is structured alongside training and nutrition, body recomposition accelerates. But when it’s ignored, training becomes a source of accumulated fatigue rather than a driver of change.

Recomposition vs Fat Loss vs Muscle Building: What’s the Difference?

Goal	Calorie Approach	Primary Training	Result	Timeline
Body recomposition	Maintenance to small deficit	Progressive resistance training	Fat decreases, muscle increases simultaneously	Slower, but shape changes significantly
Fat loss	Calorie deficit	Cardio + resistance	Weight decreases (fat + some muscle)	Faster weight loss, risk of lean mass loss
Muscle building	Calorie surplus	Progressive resistance training	Muscle increases, some fat gain possible	Fastest muscle growth, body weight increases

Most people who think they want to “lose weight” actually want the outcome in the first row: less body fat, more definition, a different shape. Body recomposition delivers that, but it just takes longer to show on the scale.

How Long Does Body Recomposition Actually Take?

The honest answer: longer than fat loss, but the results last.

Changes you can see in the mirror and measure with body composition scans typically take 12 to 24 weeks of consistent, structured training and nutrition. The first 4–6 weeks are often the least visually dramatic, because the changes are happening at a tissue level before they become visible.

The factors that determine speed:

• Training history. Those returning after a break, or moving from unstructured to structured training, typically see faster results due to muscle memory and re-sensitisation to training stimulus.
• Protein consistency. The closer you are to your daily protein target, the faster lean mass is preserved and built.
• Recovery quality. Sleep and active recovery directly influence how quickly tissue is repaired between sessions.
• Assessment accuracy. Programs built without a baseline body composition measurement are guessing. Programs built from actual scan data are targeted.

SOMA uses body composition scans as a baseline at onboarding. These measure lean mass, fat mass, hydration, and visceral fat, giving you a real starting point and a measurable way to track recomposition progress that the scale can’t show.

How SOMA’s Assessment Approach Supports Body Recomposition

The onboarding process that every SOMA member goes through, such as posture and movement analysis, body composition scanning, functional strength and stability testing, is the foundation of how our trainers build recomposition programs that actually work.

The result is a program where every exercise has a reason, every progression is deliberate and the training is calibrated to your specific body.

Explore the full team of personal trainers in Sydney CBD and how each specialist approaches training assessment.

Protein: How Much Do You Actually Need For Body Recomposition?

The ISSN recommendation of 1.6–2.2 g/kg is a research-backed range. Where you sit within that range depends on your training age, how close you are to your genetic ceiling for muscle growth and your current body fat percentage.

Our personal trainers work with members to establish a personal protein target based on their body composition scan results, training frequency and daily lifestyle. The most common finding: people are eating roughly half the protein they need.

A practical starting framework for most active adults:

• Sedentary or lightly active: 1.2–1.6 g/kg bodyweight
• Training 3–4 times per week: 1.6–2.0 g/kg bodyweight
• Training 4–5 times per week with body recomposition as the goal: 2.0–2.2 g/kg bodyweight

For a 75 kg person training 4 times per week, that means targeting around 150–165 grams of protein daily. Spread across three to four meals, each meal should contain roughly 35–45 grams of protein from whole food sources.

Timing matters less than totals. Getting protein in early in the day (rather than back-loading it all into dinner) supports muscle protein synthesis throughout the day, which is relevant when body recomposition is the goal.

Common Body Recomposition Mistakes and How To Fix Them

Mistake 1: Treating cardio as the primary tool

Cardio burns calories during exercise, but strength training burns calories during exercise and increases the metabolic demand of your body at rest by preserving and building lean muscle. For body recomposition, resistance training is not optional.

Mistake 2: Training without progression

If you’re doing the same weights, same reps, same exercises you were doing three months ago, you’re maintaining. Recomposition requires your training to become progressively more challenging over time.

Mistake 3: Not tracking protein

You don’t need to track calories forever, but most people benefit from tracking protein specifically at least for 4–8 weeks to understand their actual intake versus their target. The gap is almost always larger than expected.

Mistake 4: Ignoring sleep and recovery

Training creates the stimulus, sleep and recovery create the adaptation, and cutting sleep to fit in more training is counterproductive.

Mistake 5: Measuring success on the scale

Body recomposition can show significant visual changes with little to no change in scale weight. If fat is being lost and muscle is being gained simultaneously, the number may be static for weeks while your body is changing substantially. Body composition scans are a far more useful progress metric.

Frequently Asked Questions About Body Recomposition

Can you really lose fat and build muscle at the same time?

Yes, under the right conditions. Research, including Barakat et al. (2020), confirms that simultaneous fat loss and muscle gain is achievable, particularly for individuals new to structured training, returning after a break, or those with higher body fat levels. It’s slower than a dedicated fat loss phase, but the results are more sustainable and lead to better body composition outcomes.

How long does body recomposition take to show results?

Visible changes typically begin to appear at 8–12 weeks of consistent, structured training and nutrition. Measurable changes on body composition scans are often detectable earlier. Significant recomposition that you can see and feel typically takes 16–24 weeks.

How much protein do I need for body recomposition?

The ISSN recommends 1.6–2.2 g/kg of bodyweight per day for individuals seeking to simultaneously build muscle and reduce fat. This is significantly higher than general dietary guidelines, which are not designed for recomposition goals.

How does body recomposition differ for women?

The underlying physiology of body recomposition is the same for men and women. The key difference is that women have lower testosterone levels, which means muscle building is slower. This means the recomposition process can be highly effective for women, particularly in terms of body shape change relative to scale weight. Women seeking body recomposition benefit from the same approach: progressive resistance training, adequate protein, and structured recovery.

How often should I train for body recomposition?

3–4 resistance training sessions per week is an effective frequency for most people pursuing body recomposition. Recovery between sessions matters as much as the sessions themselves. Training every day at high intensity without adequate recovery will increase fatigue and slow adaptation, the opposite of what recomposition requires.

Is body recomposition possible if I’m already quite fit?

Yes, though it becomes progressively more challenging as you approach your genetic ceiling for lean mass. Advanced trainees may see smaller changes per unit of effort compared to those newer to structured training. At this stage, the precision of your program matters more than it does for beginners.

Are You Considering Body Recomposition?

If you’ve been training without seeing the shape changes you’re after, the answer isn’t more cardio or fewer calories, it’s a more precise approach.

Book a consultation with our personal trainers in Sydney CBD to start with a full-body assessment and a recomposition program built around your actual body.