FitSuite Tools

Macro Calculator for Bodybuilding

Bodybuilding nutrition requires precise macro tracking across different phases of training. Use our calculator as a foundation, then apply phase-specific strategies for off-season growth, contest prep cutting, and peak week manipulation.

Off-Season Bulking Macros

During the off-season, bodybuilders should aim for a moderate surplus of 200-400 calories with macros set at approximately 2.0-2.2g protein per kg, 4-6g carbs per kg, and 0.8-1.2g fat per kg body weight. This supports maximum muscle growth while limiting excessive fat accumulation that would require a longer contest prep.

Contest Prep Cutting Macros

During contest prep (typically 12-20 weeks), reduce calories by 300-500 below TDEE while keeping protein very high at 2.2-2.8g per kg to preserve muscle. Reduce fat to 0.5-0.7g per kg (do not go lower to maintain hormonal function) and fill remaining calories with carbs. As the prep progresses, carbs are gradually reduced while protein and fat stay relatively stable.

Frequently Asked Questions

How much protein do bodybuilders need?
During a bulk, 2.0-2.2g per kg body weight. During a cut, increase to 2.2-2.8g per kg to maximize muscle retention in a calorie deficit. Higher protein during a cut helps preserve muscle and improves satiety.
Should I carb cycle for bodybuilding?
Carb cycling (higher carbs on training days, lower on rest days) can be effective during contest prep to maintain training performance while deepening the calorie deficit on rest days. During the off-season, consistent daily macros are usually sufficient.

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