
B³ Macro Starter Guide (Evidence-Based Nutrition)
Learn how to set your calories, protein, carbs, and fats the right way
Macros determine how your body looks, not just how much you weigh.
Your calorie intake controls weight change.
Your macro balance controls muscle retention, energy, and hunger.
Step 1 — Set Calories
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Fat Loss: Body Weight × 10–12
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Recomposition: Body Weight × 12–14
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Muscle Gain: Body Weight × 14–16
Step 2 — Set Protein
✔ 0.8–1.1g/lbs. to maintain lean mass in a deficit
(ISSN, 2017)
Step 3 — Set Fats
✔ 20–30% of calories for hormonal health
Step 4 — Carbs
✔ Fill remaining calories
✔ Fuel your training and recovery
Example for 170 lbs. client (Fat Loss)
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Calories: 1,900
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Protein: 170g
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Fat: 60g
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Carbs: 165g
Perfect for fat loss, recomposition, and lean gains.