Body Recomposition: Losing Fat and Building Muscle at the Same Time

What recomposition means

Body recomposition means gaining muscle and losing fat at the same time. The two can roughly cancel out on the scale, so your weight may barely change while your shape and composition improve. Recomp was long seen as something only beginners could pull off, but a 2020 review concluded that trained people can do it too under the right conditions, just more slowly.

The appeal is that you skip separate bulking and cutting phases. The cost is speed. You usually build less muscle than in a dedicated surplus and lose fat more slowly than in a dedicated deficit.

Who is most likely to succeed

Research and coaching experience both suggest some people are far better candidates than others. What they share is either a big gap between the muscle they have and the muscle they could carry, or enough stored energy (body fat) to fuel growth without eating in a surplus.

• People new to resistance training
• Lifters returning after a long break, who may regain muscle quickly
• Individuals with higher body fat levels
• Trained lifters who significantly improve their training program, protein intake or sleep

Set calories near maintenance

Most recomp approaches put calories at maintenance or in a small deficit, roughly 10 to 20 percent below. Go deeper and you favor fat loss at the expense of muscle gain. Go into a surplus and you're on a lean bulk. People with more body fat can usually handle the deeper end of that range, while leaner people tend to do better close to maintenance.

Some people cycle calories or carbs, eating more on training days and less on rest days, to support performance while keeping the weekly average near maintenance. That's a matter of preference, not a requirement.

Protein and training are non-negotiable

A high protein intake looks like one of the main things that makes recomp work. Studies that saw recomposition in trained people often used around 2.0 g/kg or more. In the Longland trial, which paired a large deficit with intense training, only the higher-protein group gained lean mass. For most people trying to recomp, 1.8 to 2.4 g/kg is a reasonable range.

Your training has to give a strong, progressive stimulus. Without it, the body has no reason to build muscle while energy is short. Track your main lifts and keep adding weight or reps. Strength going up while your weight holds steady is one of the clearest signs recomp is happening.

How to track progress when the scale does not move

Since your weight may not budge, the scale tells you little on its own. Combine several measures: waist and limb measurements, photos in the same lighting and pose, strength trends and, if you have access, consistent body composition measurements. Every method has its own error, so look for trends that agree over several weeks instead of reacting to one number.

• Waist circumference decreasing
• Arm, chest and thigh measurements stable or increasing
• Strength rising on key lifts
• Clothes fitting differently
• Photos showing improved definition

When to switch to a bulk or cut

Recomp slows down as you get leaner and more trained. If several months go by with flat measurements and stalled lifts, a dedicated phase will probably get you further. A focused lean bulk speeds up muscle gain, and a dedicated cut shows off the muscle you've built. Many experienced lifters alternate between the two instead of trying to recomp forever.

A sample recomposition week

Here's what a practical setup might look like for an 80 kg person with moderate body fat: calories about 10 percent below estimated maintenance, protein around 160 to 180 g a day, three to four full-body or upper/lower sessions a week, and a daily step target that stays the same from week to week. Most of the carbs go in the meals before and after training, and fat covers about a quarter to a third of calories.

Every week they log training loads and take an average of their weigh-ins, and every two weeks they measure their waist. As long as the waist is shrinking and lifts are climbing, nothing changes. If weight is falling faster than about 0.5 percent a week and strength is dropping, calories go up a little. If nothing has changed in four to six weeks, it's time to review calories, training or both.

• Calories: maintenance to about 10 to 20% below
• Protein: about 2 g/kg spread over 3 to 5 meals
• Training: 3 to 5 progressive resistance sessions per week
• Steps: a consistent daily target
• Check-ins: weekly weight average, biweekly measurements, monthly photos