Body Recomposition: How to Lose Fat and Build Muscle

Body recomposition refers to improving body composition by reducing body fat while maintaining or increasing lean muscle mass. Unlike conventional weight-loss approaches that focus primarily on reducing scale weight, body recomposition looks at changes in the amount of fat and lean tissue in the body.

For some people, particularly those who are new to resistance training, returning after a training break, or carrying more body fat, it may be possible to make improvements in both areas at the same time. However, results vary considerably between individuals and depend on factors such as training experience, nutrition, starting body composition, recovery and consistency.

A successful approach does not require extreme dieting or complicated workouts. It generally involves appropriate nutrition, regular resistance training, sufficient recovery and a realistic way of measuring progress.

What Is Body Recomposition?

Body recomposition means changing the proportion of fat and lean tissue in your body.

For example, a person might lose body fat while gaining some muscle, resulting in a smaller change in total body weight than expected. This is one reason the number on the bathroom scale does not always reflect every meaningful change occurring in the body.

Traditional weight loss often places greater emphasis on reducing total body weight. Body recomposition takes a broader approach by considering body composition, strength and physical performance alongside weight.

It is important to remember that body recomposition is not guaranteed. The rate and extent of change can differ based on age, sex, genetics, training history, diet, starting body composition and other lifestyle factors.

Nutrition for Body Recomposition

Nutrition provides the energy and nutrients needed to support training, recovery and changes in body composition.

There is no single body-recomposition diet that works for everyone. A sustainable eating pattern should provide adequate protein and other essential nutrients while matching calorie intake to the individual’s goals and activity level.

Prioritise Adequate Protein

Protein is particularly important when the goal is to maintain or build muscle.

For exercising individuals, the International Society of Sports Nutrition has reported that approximately 1.4–2.0 grams of protein per kilogram of body weight per day is sufficient for most people who exercise regularly. Individual requirements can vary, particularly during periods of calorie restriction or depending on training demands.

Good protein sources include:

• Chicken
• Fish and seafood
• Eggs
• Greek yoghurt
• Cottage cheese
• Milk and other dairy foods
• Tofu
• Tempeh
• Beans
• Lentils
• Other legumes

Rather than concentrating all protein into one meal, many people find it practical to include a protein-rich food in each main meal.

People with kidney disease, other medical conditions, or specific dietary restrictions should discuss substantial changes to protein intake with an appropriate healthcare professional.

Include Carbohydrates

Carbohydrates are an important source of energy for physical activity.

Instead of treating carbohydrates as something that must be eliminated during fat loss, focus on nutrient-dense choices such as:

• Oats
• Brown rice
• Wholegrain bread
• Potatoes
• Sweet potatoes
• Quinoa
• Beans
• Fruit
• Vegetables

The amount that works best depends on total energy needs, training volume, preferences and individual circumstances.

Include Dietary Fats

Dietary fat also has an important role in a balanced eating pattern.

Useful sources include:

• Avocados
• Nuts
• Seeds
• Olive oil
• Nut butters
• Fatty fish

Rather than eliminating dietary fat, pay attention to overall intake and choose predominantly unsaturated sources.

How Many Calories Should You Eat for Body Recomposition?

There is no universal calorie target for body recomposition.

Some people may make progress around their maintenance calorie intake, while others may use a modest calorie deficit when reducing body fat is the main priority.

A very aggressive calorie restriction is generally not a sensible starting point for someone trying to preserve or gain muscle. Energy restriction can make it harder to support training performance and lean-mass development.

Your calorie requirements depend on factors including:

• Age
• Sex
• Height
• Body weight
• Activity level
• Training frequency
• Current body composition
• Overall health

Instead of pursuing rapid weight loss, monitor several indicators of progress and adjust your approach gradually.

If you have a history of disordered eating, are underweight, are pregnant or breastfeeding, or have a medical condition, seek appropriate professional guidance before deliberately restricting calories.

Resistance Training: The Foundation for Muscle Development

Nutrition alone cannot provide the training stimulus required for muscle development. Resistance training gives muscles a reason to adapt and become stronger.

The latest ACSM guidance emphasises consistency and progressive training rather than unnecessarily complicated programmes. Its 2026 position stand reviewed evidence from 137 systematic reviews involving more than 30,000 participants.

Train the Major Muscle Groups

A balanced resistance programme can include movements that train the major muscle groups.

Examples include:

• Squats
• Lunges
• Deadlift variations
• Bench presses
• Rows
• Pull-ups or lat pulldowns
• Overhead presses
• Hip-hinge movements

The exact exercises are less important than choosing movements that suit your ability, equipment, goals and training environment.

Resistance training can also be performed using bodyweight exercises, resistance bands, machines or free weights. Current ACSM guidance notes that people do not necessarily need sophisticated equipment to benefit from resistance training.

Use Progressive Overload

Progressive overload means gradually increasing the training challenge as your ability improves.

Progress can come from:

• Increasing resistance
• Performing additional repetitions
• Adding training volume
• Improving exercise technique
• Increasing range of motion
• Improving control
• Progressing to a more challenging variation

You do not need to increase the weight every session. The appropriate progression depends on your programme and training experience.

Consistency is generally more important than constantly changing exercises or chasing personal records.

How Often Should You Strength Train?

The appropriate frequency depends on your experience, schedule, recovery and programme design.

The 2026 ACSM guidance recommends training all major muscle groups at least twice per week as a practical starting point for healthy adults, while recognising that programmes should be adapted to individual goals and circumstances.

A beginner might start with two or three full-body sessions each week, while a more experienced lifter may use a different weekly structure.

The best programme is one that you can perform consistently and recover from.

Should You Do Cardio During Body Recomposition?

Cardiovascular exercise can complement a body-recomposition programme by supporting cardiovascular fitness, physical activity and energy expenditure.

Suitable activities can include:

• Brisk walking
• Cycling
• Swimming
• Jogging
• Hiking
• Elliptical training

The amount of cardio you need depends on your overall activity level and goals.

If you perform large amounts of cardio while eating too little or recovering poorly, your resistance-training performance may suffer. A balanced programme should therefore consider resistance training, cardiovascular activity, nutrition and recovery together.

Increasing everyday movement can also be useful. Walking more, taking the stairs and reducing prolonged periods of sitting can increase overall activity without requiring additional formal workouts.

Recovery Matters

Training is only one part of body recomposition. Recovery allows the body to adapt to exercise.

Get Enough Sleep

Sleep is important for general health, wellbeing and physical recovery.

The CDC recommends that adults aged 18–60 get at least seven hours of sleep per night, while recommended sleep duration differs for older age groups.

Instead of treating sleep as optional, make it part of your overall training routine.

Helpful habits can include:

• Keeping a relatively consistent sleep schedule
• Creating a comfortable sleeping environment
• Limiting factors that interfere with sleep
• Allowing sufficient time for sleep each night

If persistent sleep problems are affecting your health or daily life, discuss them with a healthcare professional.

Manage Training and Life Stress

Exercise places stress on the body, and recovery can become more difficult when combined with demanding work, inadequate sleep and other forms of daily stress.

Simple activities such as walking, relaxation, hobbies, breathing exercises and maintaining a regular routine may help with general stress management.

You do not need to eliminate everyday stress completely. The aim is to create a lifestyle in which training and recovery are realistically sustainable.

How to Track Body Recomposition Progress

One of the most common mistakes is judging progress exclusively by scale weight.

Because fat and lean mass can change in different directions, consider tracking several measures.

1. Body Weight

If you choose to weigh yourself, try to do so under reasonably consistent conditions.

Daily weight can fluctuate because of hydration, food intake, digestion and other factors. Look at the broader trend rather than reacting to a single measurement.

2. Waist and Other Body Measurements

Measurements can provide additional information alongside body weight.

Depending on your goals, you could track:

• Waist
• Hips
• Chest
• Arms
• Thighs

Take measurements consistently and avoid interpreting small short-term changes as definite changes in body fat.

3. Progress Photos

Progress photographs can help you identify gradual visual changes.

For more consistent comparisons, use similar:

• Lighting
• Clothing
• Camera distance
• Posture
• Time intervals

Photos should be used as one progress measure rather than as a judgement of health or appearance.

4. Strength and Training Performance

Keep a simple training log showing your exercises, sets, repetitions and resistance.

If your strength or exercise performance is gradually improving while other measurements are moving in the desired direction, that can provide useful evidence that your programme is working.

How Long Does Body Recomposition Take?

Body recomposition is generally a gradual process.

There is no reliable timeline that applies to everyone. Changes can take months rather than weeks, particularly for people who already have substantial resistance-training experience.

Results can be influenced by:

• Starting body composition
• Training history
• Nutrition
• Protein intake
• Resistance-training programme
• Sleep
• Stress
• Genetics
• Age
• Consistency

Beginners may experience relatively noticeable improvements in strength when they start resistance training, but that does not mean everyone will experience the same rate of muscle gain or fat loss.

Avoid programmes that promise dramatic body-composition changes within an unrealistically short period.

A Practical Body Recomposition Week

A simple weekly structure might look like:

Monday: Full-body resistance training
Tuesday: Walking or light cardiovascular activity
Wednesday: Full-body resistance training
Thursday: Rest or light activity
Friday: Full-body resistance training
Saturday: Walking, recreational activity or moderate cardio
Sunday: Rest

This is only an example, not a prescription.

Your training schedule should reflect your current fitness level, experience, available equipment, goals and ability to recover.

The 2026 ACSM guidance also emphasises that a simpler programme performed consistently can be more useful than a complicated programme that is difficult to maintain.

What Should You Eat for Body Recomposition?

A body-recomposition diet does not need to be complicated.

A useful meal structure can include:

Protein + vegetables or fruit + carbohydrate source + healthy fat

For example:

Breakfast: Eggs, oats, berries and Greek yoghurt

Lunch: Chicken, brown rice, vegetables and avocado

Snack: Greek yoghurt, fruit and nuts

Dinner: Fish, potatoes, vegetables and olive oil

These are examples rather than mandatory meals. Vegetarian and vegan diets can also be structured around appropriate protein sources such as tofu, tempeh, beans, lentils and other plant foods.

The most appropriate eating pattern is one that provides adequate nutrition and can realistically be maintained over time.

Do You Need Supplements?

No. Supplements are not essential for body recomposition.

A balanced diet can provide protein and other nutrients for many people. Protein supplements can be a convenient option when meeting protein needs through food is difficult, but they should not be treated as a requirement.

Anyone considering supplements should consider the product’s ingredients, quality and suitability for their circumstances.

If you take medication, have a medical condition, are pregnant or breastfeeding, or are considering a major dietary change, speak with an appropriately qualified healthcare professional before using supplements or making significant changes to your diet.

Common Body Recomposition Mistakes

Cutting Calories Too Aggressively

A very large calorie deficit may result in rapid weight loss but can make training, recovery and adequate nutrition more difficult.

Not Eating Enough Protein

Inadequate protein intake can make it harder to support muscle maintenance and development during training.

Doing Excessive Cardio

Cardio can be valuable, but excessive training combined with inadequate food intake and recovery may make it harder to maintain resistance-training quality.

Changing Your Programme Constantly

Changing exercises every week can make it difficult to determine whether your strength and performance are actually improving.

Focusing Only on Scale Weight

Scale weight does not show the complete picture of body composition.

Consider strength, measurements, photographs, fitness and longer-term weight trends alongside one another.

Ignoring Recovery

More exercise is not automatically better. Adequate sleep, nutrition, rest and sensible training progression are all important parts of a sustainable programme.

FAQs

Can you lose fat and gain muscle at the same time?

Yes, it can happen, particularly in some beginners, people returning to resistance training and certain individuals with higher levels of body fat. However, the extent of simultaneous fat loss and muscle gain varies considerably between individuals.

How much protein do you need for body recomposition?

For exercising individuals, research-based guidance commonly places daily protein intake around 1.4–2.0 g/kg of body weight for most active people. Individual needs can differ depending on factors such as training, body composition and calorie intake.

Is body recomposition better than weight loss?

Neither approach is universally better. The appropriate goal depends on the individual’s health, body composition, preferences and circumstances. Someone primarily interested in reducing body weight may use a weight-loss approach, while another person may prioritise improving body composition and strength.

Do you need to lift weights for body recomposition?

Resistance training is an important tool for maintaining and developing muscle. It can be performed using weights, machines, resistance bands or bodyweight exercises. Current ACSM guidance supports resistance training as a key component of improving muscle function and hypertrophy.

How long does body recomposition take?

There is no fixed timeline. Noticeable changes generally require consistent training and nutrition over an extended period, and results vary according to training history, starting body composition, nutrition, recovery and genetics.

Can you do body recomposition without supplements?

Yes. Supplements are not required. A balanced diet can provide the protein and nutrients needed to support a resistance-training programme for many people.

The Bottom Line

Body recomposition is about improving the relationship between body fat and lean mass rather than focusing exclusively on the number shown on the scale.

A practical approach includes:

• Eating an appropriate amount of food for your goal
• Consuming adequate protein
• Including nutrient-dense foods
• Performing regular resistance training
• Progressing gradually
• Maintaining appropriate cardiovascular activity
• Getting enough sleep
• Managing recovery and stress
• Tracking multiple measures of progress
• Staying consistent over time

There is no single diet, workout or supplement that guarantees body recomposition.

The most sustainable approach is to build habits that support your individual goals while allowing enough time for gradual change.

Health and Fitness Disclaimer

This article is intended for general educational purposes and does not provide individual medical, nutritional or exercise advice. Body-recomposition strategies may not be appropriate for everyone. If you have a medical condition, take medication, are pregnant or breastfeeding, have a history of disordered eating, or are unsure whether a particular diet or exercise programme is suitable for you, consult an appropriately qualified healthcare professional before making significant changes.

Sources and Further Reading

• International Society of Sports Nutrition — protein and exercise position stand.
• American College of Sports Medicine — 2026 Resistance Training Position Stand.
• Centers for Disease Control and Prevention — sleep recommendations for adults.