How Much Protein Do You Really Need to Build Muscle?

Protein is the raw material your body uses to repair and build muscle after training. Eat too little and progress stalls no matter how hard you lift. But the fitness industry loves to exaggerate — you don't need a tub of powder at every meal. Here's what the research actually says.

The daily target that works

Decades of studies converge on a simple range for building muscle: 0.7 to 1 gram of protein per pound of bodyweight per day (roughly 1.6–2.2g per kg). For a 175lb person, that's about 125–175g daily. Going higher rarely adds benefit; going lower leaves gains on the table.

Timing matters less than total

The old "anabolic window" myth said you had 30 minutes post-workout or your gains vanished. Research has since shown your total daily intake matters far more than precise timing. That said, spreading protein across 3–4 meals of 25–40g each maximises muscle protein synthesis better than one giant serving.

Best protein sources

• Lean meats: chicken, turkey, lean beef
• Fish and seafood: salmon, tuna, shrimp
• Eggs and dairy: Greek yogurt, cottage cheese, milk
• Plant-based: tofu, tempeh, lentils, edamame, seitan
• Convenient extras: whey or plant protein powder to fill gaps

How to actually hit your number

Most people dramatically underestimate their intake. Anchor every meal with a protein source, keep quick options on hand (yogurt, jerky, a shake), and track it for a couple of weeks until you learn what your target looks like on a plate. AlphaPulse macro tracking and barcode scanning make hitting your protein goal effortless.

The takeaway

Aim for 0.7–1g per pound of bodyweight, spread across the day, from quality sources. Nail that consistently alongside progressive training and muscle growth becomes a matter of time.