What Are Macronutrients?
Macronutrients are the three main nutrients your body needs in large amounts: protein, carbohydrates, and fats. Each serves unique functions and provides different amounts of energy per gram.
Understanding macros helps you fuel your body optimally for your goals, whether building muscle, losing fat, or improving athletic performance.
Protein: The Building Block
Protein provides 4 calories per gram and is essential for muscle repair, enzyme production, and immune function.
- Muscle building: 1.6-2.2g per kg body weight
- Fat loss: 1.8-2.4g per kg to preserve muscle during deficit
- Maintenance: 1.2-1.6g per kg for general health
Pro Tip
Prioritize protein first when planning meals. It is the most satiating macro and hardest to overconsume.
Carbohydrates: The Energy Source
Carbs provide 4 calories per gram and are your body's preferred fuel source for high-intensity activity. They are not essential but are highly beneficial for performance and muscle building.
- High activity: 4-6g per kg body weight
- Moderate activity: 2-4g per kg
- Low carb approaches: 0.5-2g per kg
- Time carbs around workouts for best performance
Fats: Essential Functions
Fats provide 9 calories per gram and are essential for hormone production, vitamin absorption, and brain function. Never go too low on fats.
- Minimum intake: 0.5g per kg body weight
- Optimal range: 0.7-1.2g per kg for most people
- Prioritize unsaturated fats from fish, nuts, avocados, olive oil
- Include some saturated fat from whole food sources
Setting Your Macro Targets
Use our macro calculator to find personalized targets. The process is: determine total calories, set protein, set fats, fill remaining calories with carbs.
- Step 1: Calculate your TDEE
- Step 2: Adjust for goal (deficit or surplus)
- Step 3: Set protein at 1.6-2.2g per kg
- Step 4: Set fats at 0.7-1g per kg
- Step 5: Remaining calories come from carbs
Conclusion
Tracking macros provides flexibility while hitting nutritional targets. You can eat foods you enjoy as long as they fit your macro targets. Start with calorie and protein tracking, then refine as you learn.