How to Calculate Your Macros for Body Recomposition

Body recomposition is the process of simultaneously reducing body fat and increasing lean muscle mass. It is slower than a dedicated cut or bulk, but it achieves both goals concurrently — making it the preferred approach for most intermediate trainees who are not competing and do not want to alternate between gaining phases and cutting phases. The macronutrient targets for recomposition are specific and differ meaningfully from either extreme.

Why Standard Deficit Calories Do Not Work for Recomposition

A traditional caloric deficit optimized for fat loss typically places you at 500–750 calories below your Total Daily Energy Expenditure (TDEE). At this deficit, muscle protein synthesis is limited because your body is in an energy-scarce state. You lose fat, but you also lose muscle, which is why aggressive cuts require significantly higher protein intake to preserve lean mass.

Recomposition targets a much smaller deficit: typically 100–200 calories below TDEE, or occasionally maintenance calories with modified macros. This small deficit is enough to drive gradual fat loss while keeping enough energy available for muscle protein synthesis when training stimulus is applied.

Calculating Your Recomposition Calories

Start with your TDEE, calculated from your Basal Metabolic Rate adjusted for activity level. Use the USECALC TDEE Calculator to establish this baseline. Then:

Recomposition Target = TDEE − 150 to 250 calories

Example: a 30-year-old male, 180 lbs, moderately active, with a TDEE of 2,750 calories targets 2,500–2,600 calories for recomposition.

Protein: The Most Important Macro

Protein intake is the central variable in recomposition. It provides the amino acids needed for muscle protein synthesis and is highly satiating, which helps manage caloric intake. For recomposition, target:

Protein = 0.8 to 1.0 grams per pound of body weight (1.8 to 2.2 g/kg)

For a 180 lb individual: 144–180 grams of protein per day. At 4 calories per gram, this represents 576–720 calories from protein.

Fat: The Minimum Threshold

Dietary fat is essential for hormone production, including testosterone and estrogen, which are directly involved in muscle growth and fat metabolism. Too low a fat intake suppresses these hormones. Minimum target:

Fat = 0.35 to 0.4 grams per pound of body weight

For a 180 lb individual: approximately 63–72 grams of fat per day (567–648 calories at 9 cal/g).

Carbohydrates: The Performance Variable

Carbohydrates fill the remaining caloric budget after protein and fat are accounted for. They are not essential in the way protein and fat are, but they are the primary fuel for resistance training. Higher carbohydrate intake on training days supports workout performance and glycogen replenishment. Lower intake on rest days can slightly increase fat oxidation.

Carbohydrates = (Total Calories − Protein Calories − Fat Calories) ÷ 4

For the 180 lb example at 2,550 calories: (2,550 − 660 − 612) ÷ 4 = approximately 320 grams of carbohydrates. This is a high carbohydrate allocation, appropriate for an active individual training 4–5 times per week.

Tracking and Adjusting

Recomposition progress is slower than either a dedicated cut or bulk. Expect 0.5–1 lb of fat loss per month alongside gradual strength and muscle gains. Weigh yourself weekly and average the readings. If weight is dropping faster than 1 lb per week over a 4-week period, increase calories slightly to preserve muscle. Use the USECALC Macro Calculator to compute your starting targets and adjust from there based on real progress data.