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  3. Macro Ratios for Different Goals - Cutting, Bulking & Recomp Guide

Learn the optimal protein, carb, and fat ratios for fat loss, muscle gain, and body recomposition backed by current research.

Quick answer

Macro ratios depend on your goal, but calories and protein drive results. Cutting: moderate deficit, protein 1.8-2.2 g/kg, fats at least 20-25% of calories. Bulking: small surplus, protein 1.6-2.0 g/kg, higher carbs for training. Recomposition: maintenance calories, high protein, and progressive resistance training. Carb-fat split is mostly personal preference.

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Step 1 of 6 — Basics

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01Step 1: The Macro Hierarchy

Not all macros are created equal in terms of priority. The evidence-based hierarchy is: total calories first, then protein, then the carb-to-fat split. Getting your calorie target right matters most for weight change. Protein is next because it directly determines whether you preserve or build lean mass. The ratio between carbs and fat is the least critical factor - both are important, but personal preference, training style, and adherence should drive this split rather than chasing an "optimal" percentage. This hierarchy simplifies nutrition planning considerably.

02Step 2: Fat Loss (Cutting) Macros

For cutting, create a moderate calorie deficit of 15-25% below TDEE (typically 300-600 calories depending on your maintenance level). Set protein at 1.8-2.2 g/kg body weight - higher protein during a deficit preserves lean mass and increases satiety. Allocate at least 20-25% of total calories to fat for hormonal health (typically 0.7-1.0 g/kg body weight). Fill remaining calories with carbohydrates. For a 80 kg person on 2,000 calories, this might look like: 170g protein (680 cal), 55g fat (495 cal), and 206g carbs (825 cal). Adjust every 2-4 weeks based on progress.

03Step 3: Muscle Gain (Bulking) Macros

For bulking, eat a small calorie surplus of approximately 5-15% above TDEE — for most people roughly 150-400 extra calories, targeting 0.25-0.5% body weight gain per week. Set protein at 1.6-2.0 g/kg - slightly lower than cutting since you have ample energy for MPS. Prioritize higher carbohydrates to fuel training performance and recovery, as carbs replenish muscle glycogen and support the intensity needed for progressive overload. Fat should be at least 20% of calories. A 75 kg person on 2,800 calories might target: 140g protein (560 cal), 70g fat (630 cal), and 402g carbs (1,610 cal).

04Step 4: Maintenance and Recomposition

Body recomposition - losing fat while gaining muscle simultaneously - is possible for beginners, those returning from a break, and individuals with higher body fat. Eat at maintenance calories (your TDEE) with very high protein at 2.0-2.2 g/kg to maximize MPS while allowing fat mobilization. The key driver is progressive resistance training: increase weights or reps consistently. Recomp is slower than dedicated cutting or bulking cycles, but it avoids the discomfort of a deficit or the fat gain of a surplus. Track body measurements and photos, not just scale weight.

05Step 5: Adjusting Your Ratios Over Time

Your macro ratios are a starting point, not a permanent prescription. Monitor weight trends, energy levels, training performance, and hunger signals over 2-4 week periods. If fat loss stalls during a cut, reduce carbs or fat by 50-100 calories rather than slashing intake dramatically. If training performance drops during bulking, increase carbs. If you feel chronically hungry, try shifting some carb calories to fat or protein for more satiety. Calibr8 automates these adjustments by analyzing your weekly data and recommending precise changes to keep you progressing toward your goal.

Frequently Asked Questions

Does the carb-to-fat ratio matter?

For most people, the carb-to-fat ratio matters less than total calories and protein. Research shows that when calories and protein are equated, high-carb and high-fat diets produce similar body composition results. The best ratio is the one you can adhere to consistently. That said, athletes and those doing high-intensity training generally benefit from more carbs, while more sedentary individuals may prefer a higher-fat approach for satiety. Experiment and find what keeps you energized, satisfied, and consistent.

Can I build muscle in a calorie deficit?

Yes, but it depends on your training experience and body fat level. Beginners and those with higher body fat percentages can reliably build muscle in a moderate deficit, especially with high protein intake (2.0+ g/kg) and progressive resistance training. Trained individuals with lower body fat will find it much harder - they typically need dedicated bulking phases to add significant muscle. The more advanced you are, the smaller the deficit should be if you want to preserve the possibility of muscle gain.

What is the best macro ratio for endurance athletes?

Endurance athletes have higher carbohydrate needs than strength athletes due to the reliance on glycogen for sustained performance. A good starting point is protein at 1.4-1.8 g/kg, fat at 20-25% of calories, and the remaining 50-65% from carbohydrates. During heavy training blocks, carb needs may increase to 6-10 g/kg body weight per day. Periodize your nutrition around training volume - higher carbs on heavy training days and moderate carbs on rest days. Protein remains important for recovery and preventing muscle breakdown during long sessions.

How do I know if my macro ratio is working?

Evaluate your macro ratio based on multiple indicators over 2-4 weeks: body weight trends (is it moving in the right direction at the right pace?), training performance (are you maintaining or gaining strength?), energy levels (do you feel fueled throughout the day?), hunger and satiety (is the diet sustainable?), and body composition changes (measurements, photos, or DEXA scans). If all indicators are positive, your ratios are working. If any are consistently negative, adjust the specific macro that addresses the issue rather than overhauling everything.

On this page
  1. 01Step 1: The Macro Hierarchy
  2. 02Step 2: Fat Loss (Cutting) Macros
  3. 03Step 3: Muscle Gain (Bulking) Macros
  4. 04Step 4: Maintenance and Recomposition
  5. 05Step 5: Adjusting Your Ratios Over Time
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Guide + Calculator4 min read

Macro Ratios for Different Goals - Cutting, Bulking & Recomp Guide

Reviewed by Calibr8 TeamUpdated March 14, 2026
On this page
  1. 01Step 1: The Macro Hierarchy
  2. 02Step 2: Fat Loss (Cutting) Macros
  3. 03Step 3: Muscle Gain (Bulking) Macros
  4. 04Step 4: Maintenance and Recomposition
  5. 05Step 5: Adjusting Your Ratios Over Time
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