icon-account icon-glass

Join the community!

We'll keep you up to date with interesting news, product information and offers so you never miss out.

No boring newsletters and we'll never share your address. You can unsubscribe at any time.

Popular Products

The Lean Protein
Whey protein powder for weight-loss.
The Energy Booster
Pre/intra-workout powder with BCAAs.
The Glow Booster
Collagen supplement for skin.

How Much Protein Per Day for Building Muscle?

17th October 2023

17th October 2023

By Shivraj Bassi

Eating protein and building muscle go together like protein powder and milk in a blender - you can’t have one without the other. That’s why it’s important to consider how much protein to have per day if you’re looking to build muscle.

Protein is quite literally the building block of strength and muscle. It’s vital for tissue repair and is filled with amino acids. It’s accepted that to build and increase your muscle mass, you need a high level of protein intake. But the wisdom on how much protein for muscle building varies wildly. 

Official NHS recommendations state that your daily protein intake should be 50g, but this doesn’t take into account your height, weight or energy output. We’ve done the maths for you so you’ll never need to wonder again how many protein shakes are too many. 

How much protein do I need?

Photo by Mark DeYoung on Unsplash

A human’s recommended dietary allowance, which refers to the amount of a nutrient you need to fulfil basic nutritional requirements, is 0.8g per kilo of body weight. While this might satisfy the minimum requirement, it’s not enough for athletes. Sportspeople training at an elite level eat around 2g of protein per kilo of body weight every day, and if you’ve just started an intense workout programme, that’s what you should be aiming for. When you’re really working your muscles and waking up sore the next day, this is the amount of protein to gain muscle, as fuel + muscle damage = muscle growth. So, you might be wondering how to work out exactly how much protein you personally need for muscle building…

How much protein do I need per day?

Calculating how much protein you need for building muscle through a proportion of what you eat is a flawed method, as the number you end up with will be dependent on your total calorie intake. Calculating how many grams of protein per day is more consistent when done according to weight, as you’ll be consuming the same amount regardless of your calorie count. 

The absolute best way to determine how much protein is needed for muscle building is to base the measurement off your lean body mass, or, everything in your body that isn’t fat. Calculating protein intake for a man who weighs 135g using the 2kg per kg rule states that he should be eating a colossal 270g of protein per day, which is neither necessary or realistic, especially taking into account that research shows little benefit to eating more than 2.2g of protein per kg of lean body mass.

Calculating how much protein you should eat according to lean body mass is more accurate. If a man weighs 90kg and has 20% body fat, their lean body mass is 72kg. Multiplied by 2.2, their daily protein target is 158g per day - a far more achievable goal

What is protein and why do we even need it?

Protein is a macronutrient, which is a nutrient that humans need in large quantities to live. It’s built from amino acids, which your body needs to build everything from your glute muscles to the hair on your head to your fingernails.

To increase muscle mass, your body needs to be taking in more muscle protein than it breaks down. And this statement isn’t just coming from some gym bro who eats 15 grilled chicken breasts a day - a recent study found that ‘protein intake was shown to promote additional gains in lean body mass beyond those observed with resistance exercise alone’. Protein can also help with weight loss by helping to increase your metabolism and reducing your appetite

How much protein should I eat?

Timing your protein intake is just as important as calculating the amount, as your body can’t process more than 25 to 35g per serving. Spread your consumption out throughout the day and ensure you’re eating protein with every meal - so that’s a moratorium on all those pasta dinners. The most important time to be consuming protein is in the half an hour following your gym session, which is the window to optimise the repair process in your body. This way you can optimise your protein intake for muscle building.

Innermost’s protein powders are formulated to maximise muscle growth, strength and power output, so they’re perfect for sipping on immediately post-workout. Even better, the different varieties are targeted to exactly what you’re looking to achieve with your workout regime

The Strong Protein is designed to help you to push yourself as hard as you possibly can, reduce inflammation and speed up recovery, so you’re down for less time. It’s perfect protein for building muscle and supporting your strength goals. The Lean Protein is formulated to encourage healthy, sustainable fat loss, reduce your cravings and to support muscle growth. 

Hit up The Fit Protein to increase your energy levels, rehydrate and repair those all-important muscles. And The Health Protein, as well as being vegan, is ideal for boosting your health and your immune system as well as supporting muscle growth. 

Whichever protein you choose, it’s crucial to drink it as soon as possible following your workout as you produce the stress hormones cortisol and adrenaline after exercise, which can be bad for your body. When you’re taking in nutrition, it counters this effect, kickstarts muscle growth and helping to repair your body. 

Bear in mind that you can have too much of a good thing, especially when it comes to protein sourced from red meat which has high levels of saturated fat. It’s better to source your protein from lean sources, such as protein powders, chicken breasts and salmon. Additionally, people with a very high protein diet are at risk of kidney stones. As long as you stick our above calculation, you should be just fine. Now let’s start working on those gains. 

Product Spotlight

Need Expert Advice?

Other Insights

The Truth About Electrolytes
Electrolytes. You’ve seen the word plastered across sports drinks, hydration tablets, and wellness blogs. You know they have something to do with hydration and performance. But do you really need them? Or is this just another overhyped wellness trend? The Hard Truth About Hydration Most people think hydration is as simple as drinking enough water. Wrong. If you’ve ever felt exhausted despite drinking litres of water, struggled with brain fog, or suffered from muscle cramps and sluggish recovery after exercise, there’s a good chance you’re missing a key piece of the puzzle: electrolytes. Electrolytes are essential minerals like sodium, potassium, and magnesium that keep your body running smoothly. They: Regulate hydration – Helping your body absorb and retain water effectively. Boost performance – Ensuring muscles contract properly, nerves fire efficiently, and your body keeps up with demands. Reduce muscle cramps – Preventing painful spasms and fatigue caused by mineral depletion. Improve brain function – Supporting cognitive performance, reaction times, and mental clarity. Maintain pH balance – Keeping your body’s internal systems stable for overall well-being. But here’s the problem: when you don’t replenish electrolytes, your body feels it. Dehydration, fatigue, dizziness, and even impaired cognitive function can all stem from electrolyte imbalances. If you’re training hard, sweating, fasting, or simply not eating enough electrolyte-rich foods, you’re losing more minerals than you think. The Science of Electrolytes & Hydration Even mild dehydration affects brain function. Studies show that a 2% drop in hydration can impair memory, focus, and reaction time (Journal of the American College of Nutrition, 2019). Electrolytes prevent muscle cramps. Sodium, potassium, and magnesium imbalances are the biggest culprits behind muscle cramps and post-workout fatigue (Sports Medicine, 2021). Performance drops by up to 20% when you’re dehydrated. A 2020 study found that a 1-2% decrease in hydration levels can lead to a 10-20% decline in endurance and power output (European Journal of Applied Physiology, 2020). Water Alone Won’t Cut It A lot of people assume that staying hydrated is just about drinking more water. But here’s the problem—drinking too much water without electrolytes can actually make things worse. Overhydration (yes, that’s a thing) can dilute sodium levels in your blood, leading to hyponatremia. Symptoms range from headaches and dizziness to nausea, confusion, and in extreme cases, even life-threatening complications. That’s why professional athletes, marathon runners, and high performers don’t just drink plain water—they strategically replenish electrolytes to keep hydration levels balanced. How to Stay Properly Hydrated Want to make sure you’re actually hydrating your body the right way? Here’s how: Drink smarter, not just more. Hydration isn’t just about intake—it’s about absorption. Your body needs minerals to properly retain water. Eat water-rich foods. Cucumbers, watermelon, oranges, and leafy greens naturally contain electrolytes and help with hydration. Replenish electrolytes, especially after sweating. Whether you're working out, fasting, or in hot weather, your body needs sodium, potassium, and magnesium to maintain hydration and muscle function. Ditch sugary sports drinks. Many electrolyte drinks are loaded with sugar, artificial flavours, and unnecessary additives. Your body needs the right balance of minerals—not a sugar spike. Electrolytes & Everyday Life Think electrolytes are only for elite athletes? Think again. They play a vital role in daily life, too. Morning sluggishness? Your body loses electrolytes overnight. A small dose first thing in the morning boosts energy and mental clarity. Post-workout fatigue? Sweat = lost minerals. Replenishing prevents muscle cramps and aids recovery. Fasting or low-carb diets? When you reduce carbs, your body flushes more sodium and potassium—leading to fatigue and dizziness if you don’t replenish. After drinking alcohol? Alcohol is a diuretic, meaning it causes fluid and mineral loss, which is why you wake up dehydrated and groggy after a night out. Proper electrolyte replenishment before bed can help reduce hangovers. The Problem With Most Electrolyte Drinks The issue with many “electrolyte” products on the market? They don’t contain every electrolyte your bodies need or they contain electrolytes in super low concentrations so it’s more of a marketing gimmick than anything else. In addition, many are loaded with sugar and artificial ingredients including silica; an ingredient I despise and will be talking more about on our social channels. Most mainstream electrolyte drinks contain: Excess sugar – Leading to unnecessary calorie intake and blood sugar crashes. Artificial additives – Unnecessary chemicals that do more harm than good. Cheap mineral sources – Making them less effective at restoring balance. Your body deserves better. The Innermost Solution The Hydrate Blend – a science-backed, 100% natural electrolyte formula that’s free from silica, artificial ingredients, and sugar. It hydrates up to 5x more than water alone, making it perfect for everyday hydration and workouts. Unlike most sports drinks, it delivers every single electrolyte in the right balance without sugar or synthetic fillers. Whether you’re an athlete, a busy professional, or just trying to stay sharp and feel great, The Hydrate Blend helps you stay hydrated, recover faster, and perform at your best. Final Thoughts Hydration isn’t just about drinking more water—it’s about absorbing it effectively. If you’re constantly feeling tired, sluggish, or cramping up, chances are your electrolyte balance is off. So next time you feel off, don’t just chug another glass of water—make sure you’re replenishing the right minerals, too. Read more
New Year, New Diet?
The new year is here, and with it comes the inevitable question: “What’s the best diet to follow this year?” It’s an exciting thought, isn’t it? A fresh start. A chance to get fit, shed some weight, and hit reset on your health. And while the latest trends and diets promise to be “the one,” let’s take a moment to slow down and look at what really works. The Hard Truth Most diets fail not because they don’t work, but because they don’t fit into real life. Think about it. You’re pumped, you’re excited, and you’re unstoppable — for about two weeks. Then life happens. Motivation fades (statistically, most resolutions crumble by mid-January), the restrictive nature of your new plan starts to feel like a burden, and it all falls apart. Sound familiar? The issue isn’t necessarily the diet itself — it’s that most diets aren’t realistic. You don’t need to overhaul your entire lifestyle or follow extreme rules to get healthier. In fact, sometimes the simplest, most sustainable habits will give you the biggest results. But let’s not completely dismiss diets. Different approaches work for different people. So, let’s take a closer look at some of the most popular diets right now, their pros and cons, and whether they might work for you. Keto (Low Carb, High Fat) Pros: Proven to help with rapid weight loss and can regulate blood sugar levels. For those with insulin sensitivity or certain health conditions, it can be transformative. Cons: Extremely restrictive. Eliminates most carbs, which can be a nightmare if you love bread, rice, or pasta. Social situations? Awkward. Meal planning? Time-consuming. Real Talk: If you’re someone who can commit to a high-fat, low-carb diet, it’s effective. But if your idea of happiness is pizza night, Keto might feel like a punishment. Proceed with caution. Paleo (Eat Like a Caveman) Pros: Encourages whole, unprocessed foods like lean proteins, veggies, and healthy fats. It’s a good way to clean up your eating habits. Cons: Cuts out entire food groups like dairy, grains, and legumes. Goodbye peanut butter sandwiches. Real Talk: Paleo is great if you enjoy simple meals and want to avoid processed foods. But for most people, cutting out grains and dairy forever is a tall order. Intermittent Fasting (Timing Over Calories) Pros: Simplifies eating patterns and can help with weight loss without needing to obsess over calorie counting. Cons: Not ideal for those who experience energy crashes or get “hangry.” Skipping meals isn’t for everyone. Real Talk: If you thrive with structure and enjoy skipping breakfast, intermittent fasting can work. But if skipping meals leaves you cranky or fatigued, it’s probably not the best fit. Mediterranean Diet (The Gold Standard) Pros: Loads of research supports its benefits for heart health, weight maintenance, and longevity. A balanced mix of carbs, fats, and proteins makes it more sustainable long-term. Cons: It’s less trendy, which means it doesn’t always grab the spotlight. Plus, it might require some adjustments if your current diet is heavy on processed foods. Real Talk: This is less of a “diet” and more of a lifestyle change. If you’re looking for something sustainable and flexible, the Mediterranean diet is a great option. So, What’s the Answer? Forget about finding the perfect diet. The truth is the best diet is the one that works for you. Here’s the formula that never fails: Eat nutritious food in balanced portions. Move your body regularly (whatever movement you enjoy!). Prioritise sleep — the underrated superhero of health. Sustainability is key. A diet should fit into your life, not the other way around. If it feels like torture or disrupts every meal with friends or family, it’s not going to last. It’s also worth considering why you’re dieting. If you’re looking for weight loss, remember that consistency beats intensity. Healthy habits — like eating balanced meals and getting regular exercise — will take you farther than any extreme diet ever could. A Word on Motivation Here’s the catch: motivation is temporary. It’s the honeymoon phase of any resolution, but it doesn’t last. What does last is routine. Building habits that work for you — not against you — is the real secret to success. No single diet is the holy grail. The truth is that most diets will work if you stick to them. The challenge is finding something that fits into your life seamlessly. That’s why it’s better to focus on balance and habits rather than perfection. My Diet Advice for 2025 Diets can be useful tools, but they’re not magic. Start small. Incorporate more whole foods and keep your portions in check. Move your body in a way that feels good — not as punishment, but as celebration. And don’t underestimate the power of great sleep. There’s no shame in trying a trendy diet if it motivates you to kickstart your health journey. Just remember, a diet is a tool, not a magic solution. If it doesn’t fit your lifestyle, it’s not you failing — it’s the diet and don’t beat yourself up about it. Focus on building habits you can stick with and remember that health isn’t a sprint, it’s a marathon. Read more