Bodybuilding.com Macros Formula:
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The Bodybuilding.com Macro Calculator helps determine optimal macronutrient distribution for weight loss based on your Total Daily Energy Expenditure (TDEE) with a 500-calorie deficit. This approach ensures sustainable fat loss while preserving muscle mass.
The calculator uses the following formulas:
Where:
Details: Proper macro distribution ensures you lose fat while maintaining muscle mass, energy levels, and overall health. The 500-calorie deficit creates sustainable weight loss without extreme hunger or metabolic adaptation.
Tips: Enter your TDEE (use online calculators to estimate), then distribute percentages that total 100%. Common starting ratios: 40% protein, 40% carbs, 20% fat for weight loss.
Q1: Why a 500-calorie deficit?
A: A 500-calorie daily deficit creates approximately 1 pound of fat loss per week, which is considered sustainable and healthy.
Q2: What are typical macro percentages for weight loss?
A: Common distributions: 40% protein/40% carbs/20% fat or 35% protein/35% carbs/30% fat. Adjust based on individual preferences and responses.
Q3: How do I calculate my TDEE?
A: Use online TDEE calculators that factor in your age, weight, height, gender, and activity level. Many fitness apps also provide TDEE estimates.
Q4: Should I track macros exactly?
A: While precision helps, being within 5-10 grams of each macro target is generally sufficient for progress. Consistency matters more than perfection.
Q5: When should I adjust my macros?
A: Recalculate every 4-6 weeks or after significant weight loss (10+ pounds) as your TDEE decreases with weight loss.