Protein for Bulking: How Much to Gain Muscle
For a muscle-building bulk, 1.6-2.2 g of protein per kg of body weight per day is plenty when paired with a calorie surplus. A 78 kg (172 lb) lifter targets roughly 125-170 g per…
Calculate Your Protein IntakeA bulk works because a calorie surplus plus training drives growth; protein supplies the building blocks but you do not need to eat excessive amounts of it. Once you meet 1.6-2.2 g/kg, extra calories are better spent on carbohydrate and fat to fuel training and recovery.
Keep the surplus moderate, roughly 250-500 calories above maintenance, so you gain mostly muscle rather than fat. Distribute protein across meals and keep training progressive to turn those extra calories into lean tissue.
- Bulking target: 1.6-2.2 g/kg per day
- Use a moderate surplus of 250-500 kcal
- Extra calories beyond protein come from carbs and fat
- Progressive training turns the surplus into muscle
Quick Reference
- General health (sedentary): 0.8–1.0 g/kg body weight
- Weight loss: 1.6–2.2 g/kg to preserve muscle in a deficit
- Muscle gain: 1.8–2.5 g/kg depending on training experience
- Athletic performance: 2.0–3.1 g/kg
- Spread intake across 4–5 meals of 25–40g each for best results
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Frequently Asked Questions
Most adults need between 0.8g and 2.2g of protein per kilogram of body weight per day, depending on activity level and goals. Sedentary adults need less, while those building muscle or in a calorie deficit need more to preserve lean mass.