If you’re training for muscle growth, protein is the one nutrition lever almost everyone talks about. And fair enough, it matters. But it’s also an easy one to overthink.
Between shake ads, “high protein everything”, and TikTok numbers flying around, it’s hard to know what’s actually needed for real results.
Summary: For most people trying to build muscle, the sweet spot sits around 1.6 to 2.2 grams of protein per kilogram of body weight per day. You don’t need extreme amounts, but you do need consistency. Pair that with progressive strength training, enough overall calories, and decent sleep, and you’ll be setting yourself up for steady muscle gains.
The protein target that actually makes sense for muscle growth
A solid, evidence-based range for hypertrophy (muscle growth) is:
- 1.6 to 2.2 g of protein per kg of body weight per day
That range covers most goals, from building muscle while maintaining body fat to gaining size more aggressively.
Quick examples (so you can stop guessing)
- 60 kg person: 96 to 132 g/day
- 75 kg person: 120 to 165 g/day
- 90 kg person: 144 to 198 g/day
If you want one simple number to start with, 1.8 g/kg/day is a great middle ground.
Do you need more protein if you’re cutting (losing fat)?
Often, yes.
When you’re in a calorie deficit, your body has less energy coming in, which can make it harder to hold onto muscle. Protein becomes more important here. Many people do well toward the higher end of the range:
- Around 2.0 to 2.2 g/kg/day while cutting
If you’re lean already, dieting hard, or training a lot, that higher end can help.
What if you’re bulking?
When you’re in a calorie surplus, building muscle is generally easier, and you might not need to push protein as high.
Many people build plenty of muscle around:
- 1.6 to 1.8 g/kg/day while bulking
If you’re already hitting that consistently, more protein isn’t automatically better. At that point, training quality and total calories usually matter more.
Protein timing: do you really need to “hit it” right after training?
Not in the stressful way people make it sound.
The big driver is your total daily protein, but spreading it out helps. A simple approach:
- Aim for 3 to 5 meals/snacks that include protein
- Try to get 25 to 40 g per meal (a bit less if you’re smaller, a bit more if you’re bigger)
If you train, then eat a normal meal within a couple of hours, you’re doing fine.
How much protein can your body use at once?
You can use protein at every meal. The old idea that anything above a certain amount “goes to waste” is overblown.
What matters more is:
- Hitting your total for the day
- Spreading it across meals
- Training consistently with progressive overload (adding reps, weight, or control over time)
Whole foods vs protein powder
Whole foods should be your base because they bring extra benefits: fibre, vitamins, minerals, and they’re usually more filling.
Great high-protein options include:
- Lean meat, chicken, turkey
- Fish and seafood
- Eggs and egg whites
- Greek yoghurt, cottage cheese
- Tofu, tempeh, edamame
- Lentils, beans, chickpeas
- Milk and soy milk
Protein powder is just a tool. It’s handy when you’re busy, not hungry, or struggling to reach your target. It’s not “better” than food, just convenient.
Signs you’re probably not getting enough protein
You don’t need perfect tracking, but these are common clues:
- You struggle to recover between sessions
- Your strength isn’t progressing despite consistent training
- You’re hungry all the time (especially on a cut)
- Your meals are mostly carbs and fats with little protein
If that sounds like you, a small bump in protein can make training feel noticeably better within a couple of weeks.
The biggest mistake: nailing protein but training like it’s cardio
Protein won’t build muscle on its own. To actually grow, you need to be strength training three to five times a week, or following a well-designed training split that challenges your muscles consistently. Progressive overload is essential too, which means gradually increasing reps, lifting heavier weights, or improving your form and control over time.
On top of that, you need to be eating enough overall to support your training, especially if you’re trying to gain muscle, and getting sleep and recovery you can realistically stick to. Protein is a key piece of the puzzle, but it works best when the rest of the system is in place.
A simple, realistic way to hit your protein target
If you want a low-stress plan, try this:
- Breakfast: yoghurt + fruit + nuts, or eggs on toast
- Lunch: chicken/lean meat/tofu with rice and veg
- Snack: protein shake or cottage cheese
- Dinner: fish/lean mince/beans with potatoes and salad
That structure alone gets most people close. Then you tweak based on your body weight and goals.
Want help turning nutrition into results that actually show?
At Stepz, the mission is simple: help you become the best version of yourself, in an environment where looking after yourself feels easier, not harder.
If you want a training plan that matches your goals, plus the kind of gym atmosphere that keeps you consistent, come chat with the team or jump in for a session. Find out our locations here.
Key takeaways
- For muscle growth, most people do best with 1.6 to 2.2 g/kg/day of protein
- Cutting usually benefits from the higher end of that range
- Spread protein across 3 to 5 meals for an easy win
- Whole foods first, powders for convenience
- Protein supports muscle growth, but training and recovery drive it
FAQs
How much protein do I really need to build muscle?
For most people training for muscle growth, the sweet spot sits between 1.6 and 2.2 grams of protein per kilogram of body weight per day. If you want a simple starting point, aim for around 1.8 g/kg/day and adjust if needed. You don’t need extreme amounts, just consistency.
What about when I’m bulking?
If you’re in a calorie surplus and trying to gain muscle, you can often sit toward the lower end of the range, around 1.6 to 1.8 g/kg/day. Once you’re consistently hitting that, eating more protein won’t automatically speed things up. Training quality and total calories usually matter more at that point.
Do I have to drink a protein shake straight after training?
Not in a rushed, stressful way. What matters most is your total daily protein. That said, spreading it across the day helps. If you train and then eat a proper meal within a couple of hours, you’re doing just fine.
How much protein can my body use in one meal?
Your body can use protein at every meal. The idea that anything above a certain number is “wasted” is overblown. A practical target is around 25 to 40 grams per meal, depending on your body size. Focus more on hitting your daily total and spreading it out than worrying about exact limits.
