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

Is body recomposition actually possible?

Yes. Losing fat and gaining muscle at the same time has been measured in controlled trials, and it is most likely when you are new to lifting or have extra fat to lose. The 2026 International Society of Sports Nutrition (ISSN) position stand on diets for weight reduction calls recomposition common among people doing progressive resistance training while dieting, "especially if they are in the beginning or early intermediate stages of muscular development".

The old rule was that you must eat less to lose fat and eat more to build muscle, so you cannot do both. The ISSN stand notes recomposition has also been observed in resistance-trained people, citing a 2020 review by Barakat and colleagues reporting that protein intakes of 2.6–3.5 g per kg of fat-free mass may increase the likelihood of it. The ISSN adds a limit. Recomposition "is a finite process", and the leaner you are and the closer you get to your muscular potential, the less productive it is to chase on purpose.

MakeMyFitness coaches are fitness coaches, not doctors, dietitians or physiotherapists. We coach training and everyday eating for healthy adults; our Rehab & Recovery program is exercise coaching after a clinician has cleared you, not treatment. Read our medical disclaimer before you start.

What did the key body recomposition study find?

The most quoted recomp trial is Longland and colleagues, published in the American Journal of Clinical Nutrition in 2016. Forty young men ate diets about 40% below their energy needs for 4 weeks, with half getting 1.2 g of protein per kg a day and half getting 2.4 g/kg. Everyone did resistance training plus high-intensity intervals 6 days a week.

Lean mass rose by 1.2 kg in the higher-protein group and by 0.1 kg in the lower-protein group. Fat loss was 4.8 kg versus 3.5 kg. The authors concluded that 2.4 g/kg "was more effective" than 1.2 g/kg at promoting lean mass gain and fat loss "when combined with a high volume of resistance and anaerobic exercise". Note the conditions: the researchers provided all the food, training was 6 days a week, the deficit was severe, and it lasted only a month. It proves the principle; it is not a plan to follow at home.

A gentler example comes from a 10-week trial by Vargas-Molina and colleagues, as summarised in the ISSN 2026 position stand. Resistance-trained people ate 2.5 g/kg of protein at either maintenance or a 10% deficit. Both groups gained similar lean mass, but the small deficit roughly doubled fat loss.

How much protein do you need for a recomp?

Aim for about 1.6–2.2 g of protein per kg of body weight a day, spread over 3–5 meals. The ISSN 2026 position stand says intakes of 1.6–2.2 g/kg "(and even higher in lean, resistance-trained individuals) can optimize lean mass retention" in a sustained deficit, "and possibly result in recomposition". The ISSN's 2017 protein position stand puts the everyday range for exercising people at 1.4–2.0 g/kg and says 2.3–3.1 g/kg may be needed to keep lean mass in resistance-trained people who are dieting.

Spread it out. The 2017 stand recommends about 0.25 g of high-quality protein per kg per meal, or 20–40 g, every 3–4 hours. If you have a lot of fat to lose, a practical approach is to work from a goal weight rather than current weight: the ISSN 2026 stand warns that the upper protein ranges come mainly from lean lifters and may not apply to people with higher body fat. The protein intake calculator does the sum for you.

For most vegetarian Indian diets, reaching 100 g or more a day takes planning: dal and roti alone rarely get there. Build each meal around one concentrated source such as paneer, curd, soya, eggs, chicken or fish, then add dal. Our guides to protein in Indian food and a high-protein vegetarian Indian diet list the amounts.

How many calories should you eat to lose fat and build muscle at the same time?

Eat at maintenance or in a small deficit of about 10%, and keep the deficit under 500 kcal a day. A 2022 meta-analysis by Murphy and Koehler in the Scandinavian Journal of Medicine & Science in Sports found that an energy deficit of about 500 kcal a day prevented gains in lean mass during resistance training, while strength gains held up. They advise people training to preserve muscle during weight loss to avoid deficits larger than 500 kcal a day.

Start from your maintenance number, which the TDEE calculator estimates from your weight, height and activity. Then pick a target. These are our worked examples, not prescriptions:

• Maintenance of 2,400 kcal: a 10% deficit is 2,160 kcal a day, 240 kcal under.
• Maintenance of 2,000 kcal: a 10% deficit is 1,800 kcal a day, 200 kcal under.
• Maintenance of 2,800 kcal: 10% is 280 kcal under, so 2,520 kcal; a 20% cut would be 560 kcal under, already past the 500 kcal line.

If you carry noticeable belly fat, use the small deficit; it is where the Vargas-Molina group lost more fat for the same muscle. If you are slim but soft, start at maintenance and let training do the work. If you want faster weight loss than a recomp allows, that is a fat loss phase instead, and the trade-off is slower muscle gain.

What is the best recomp workout?

The best recomp workout is a progressive strength program that trains every major muscle on 2–4 days a week, depending on experience, and adds load or reps over time. Cardio supports it but cannot replace it. The American College of Sports Medicine's 2009 position stand recommends 8–12 repetition maximum loads and 2–3 days a week for novices, 3–4 days for intermediates, and a load increase of 2–10% once you can do one or two reps more than your target.

Volume matters too. A 2017 meta-analysis by Schoenfeld, Ogborn and Krieger in the Journal of Sports Sciences found a graded dose-response: each additional weekly set was linked to a 0.37% greater gain in muscle size. That is a reason to build sets up gradually, not to start with 20 sets on day one. Alongside it, the NHS recommends strength work on at least 2 days a week plus 150 minutes of moderate activity such as brisk walking.

If you train at a gym, our gym workout plan for beginners covers the machines. At home with dumbbells or bodyweight, see how to build muscle at home. For the strength side, see our strength training goal page.

A 16-week body recomposition plan for beginners

This is our coaching template, built on the ACSM progression rules above. Adjust the exercises to your equipment and any limits your doctor has set.

1. 1

   Week 0: set your numbers

   Work out maintenance calories and pick maintenance or a 10% deficit. Set protein at 1.6–2.2 g/kg. Weigh yourself each morning for 7 days, measure your waist at the navel, take front and side photos in the same light, and note starting loads.

2. 2

   Weeks 1–4: learn the lifts

   Three full-body sessions a week. Each session: a squat or leg press, a hip hinge such as a Romanian deadlift, a push, a pull and a core exercise. Two sets of 8–12 reps, stopping with 2–3 reps left in reserve. Walk on most days.

3. 3

   Weeks 5–8: add sets and load

   Move to 3 sets per exercise. When you hit the top of the rep range on every set with good form, add 2–10% to the load. Log every set. At week 8, compare weekly average weight, waist and lifts against week 0.

4. 4

   Weeks 9–12: add a fourth day if recovery allows

   Switch to an upper and lower split 4 days a week, or stay at 3 days and add a set for lagging muscles. Keep protein steady. If strength is rising and the waist is shrinking, change nothing about food.

5. 5

   Weeks 13–16: keep progressing and re-measure

   Keep adding reps or load. Repeat photos and the waist measure at week 16, along with a week of morning weigh-ins.

6. 6

   Week 16: choose the next phase

   If the waist is down and the lifts are up, a second recomp block is reasonable. If you are now lean and progress has slowed, a dedicated gaining phase may serve you better, because recomposition is finite. If fat loss is still the priority, a structured fat-loss phase is the next step.

How do you track a recomp when the scale doesn't move?

Track a weekly weight average plus at least one other measure, because a recomp can hold body weight steady while fat falls and muscle rises. The ISSN 2026 position stand recommends using trend weight, "7–14-day rolling averages", and at least one additional outcome such as circumferences, performance, photos or body composition. It notes that "weight loss plateaus are not necessarily fat loss plateaus".

• Weekly average weight: weigh after waking and using the toilet, before food, and compare 7-day averages, not single days.
• Waist: measure at the navel every 2 weeks, relaxed, same tape. A falling waist with steady weight is the classic recomp sign.
• Strength log: reps and load for every main lift, every session. Rising numbers in a small deficit mean the training is working.
• Photos: every 4 weeks, same time, light and pose.

How fast does body recomposition work?

Expect slow, steady change measured in months. In the trials above, lean mass rose by about 1 kg over 10 weeks in trained people, and by 1.2 kg in 4 weeks only under fully controlled food and 6 training days a week. Fat loss ranged from about 1.4 kg to 4.8 kg.

That is why a recomp often feels slower than it is: 1 kg of muscle gained and 2 kg of fat lost shows up as just 1 kg off the scale, but a visibly smaller waist and heavier lifts. For a week-by-week picture of early changes, see how long it takes to see results from the gym. If muscle gain is your main aim, our muscle building page and the 4-week muscle gain plan go further.

How MakeMyFitness coaching fits a recomp

A recomp succeeds or fails on small details: whether the last two reps were hard enough, whether the load went up on time, whether protein actually reached target. MakeMyFitness is live 1:1 coaching on video across India, ₹799 a session at your gym or ₹899 at home, and it suits beginners and returners who want a coach to set their recomp numbers, correct form and keep a progression log they would otherwise skip.

Sessions are 45 minutes on Google Meet, between 6 AM and 8 PM India time. Our lead coach Kumar Abhishek holds a Diploma in Personal Training and is a Human Performance Nutritionist, both from K11 School of Fitness Sciences. See plans and prices, or read what happens in your first session.