What to Eat to Build Muscle (UK 2026)

Building muscle is simpler than most of the internet makes it sound. You do not need exotic supplements, six chicken breasts a day, or a spreadsheet of macros counted to the last gram. You need to train with enough effort, eat enough food overall, get plenty of protein, and repeat that for months. The food side is the support act to your training, and this guide covers what actually matters so you can spend less time worrying and more time getting stronger.

What actually builds muscle?

Muscle is built by a simple loop. You challenge a muscle with resistance training, which creates a signal to adapt. Your body then repairs and rebuilds that tissue a little stronger than before, using the food you eat as raw material. Training is the trigger. Food is the support. Without the training signal, extra food mostly becomes body fat. Without enough food, and enough protein in particular, your training has less to work with.

That means two things sit at the centre of muscle-building nutrition: eating enough total energy, often with a small surplus, and eating enough protein. Get those two right and the rest is fine-tuning. Everything below builds on that foundation.

How many calories do you need to build muscle?

To add new tissue, your body generally wants a little more energy coming in than it burns. This is called a calorie surplus, and the key word is small. A surplus of around 250 to 500 calories a day is plenty for most people, and it lets you gain muscle steadily while keeping any extra fat to a minimum. Eating far more than that does not build muscle faster. It mostly adds fat you will want to lose later.

There are exceptions worth knowing. If you are new to training, returning after a long break, or carrying a bit more body fat, you can often build muscle while eating at maintenance, the amount that keeps your weight stable. This is sometimes called body recomposition. The point is that you do not need to force-feed yourself or chase an aggressive bulk. A gentle, consistent approach is kinder on your body and far easier to keep up.

A practical way to start is to eat roughly the same each day, then track your body weight and how your training feels over two to three weeks and adjust. If the scale and your lifts are slowly climbing, you are in the right zone. If nothing is moving after a few weeks, add a little more food.

How much protein do you really need?

Protein gives your muscles the building blocks they need to repair and grow. For building muscle, a sensible target is roughly 1.6 to 2.2 g of protein per kg of body weight a day. The International Society of Sports Nutrition suggests that 1.4 to 2.0 g per kg is enough for most people who train, so treat the higher end of the range as a comfortable ceiling rather than a strict rule. If you weigh 70 kg, that works out at around 112 to 154 g a day.

These are guidelines, not laws. Slightly more or slightly less will not make or break your progress, and needs vary from person to person. The bigger point is that most people who want to build muscle are eating too little protein rather than too much, so nudging it up is usually the win. If you are unsure what is right for your body, a registered dietitian can tailor a number to you.

You do not have to hit the target in one or two giant meals. Spreading protein across the day, in portions of around 20 to 40 g at a time, is a practical way to reach your total and may help your muscles use it well. In simple terms, aim for a decent source of protein at most meals.

Do carbs and fats matter for muscle?

Protein gets the headlines, but carbohydrates and fats do important jobs too. Carbs are your main fuel for hard training. They top up the energy stored in your muscles, so your sessions feel stronger and you can push harder, which is the very signal that drives growth. Good sources include rice, oats, potatoes, bread, pasta, fruit and beans. If your training feels flat and heavy, low carbs are often the reason.

Fats support your hormones and general health, help you absorb certain vitamins, and make food more satisfying. You do not need a lot, but cutting fat too low is a common mistake. Include sources such as olive oil, nuts, seeds, oily fish, avocado and eggs. A plate with protein, some carbs, some fat and plenty of vegetables covers the bases without any need to obsess over ratios.

Which foods give you the most protein?

You can build muscle on an omnivore or a plant-based diet. Animal foods tend to pack more protein per portion, while plant foods bring fibre and variety, so mixing them is a smart habit. Here is a rough guide to common sources and how much protein a typical portion provides. Treat the numbers as approximate, as brands and cuts vary.

Protein values are rounded approximations and vary by brand, cut and cooking method. Accurate at the time of writing.

What might a day of eating look like?

Numbers are useful, but food is what you actually eat. Here is a relaxed example of how a day could come together for someone aiming to build muscle. It is an illustration, not a prescription, so swap in foods you like and portions that suit your appetite.

• Breakfast: Greek yoghurt with oats, berries and a spoon of nut butter, or eggs on wholegrain toast.
• Lunch: Chicken or tofu with rice, mixed vegetables and a drizzle of olive oil, or a hearty lentil and bean bowl.
• Snack: A protein shake, a handful of nuts, or cheese and fruit to top up protein between meals.
• Dinner: Salmon or lean mince with potatoes or pasta and a large helping of vegetables.
• Before bed: A small pot of yoghurt or a milk-based drink if you are still short on protein for the day.

If your day is busy, quick wins matter more than perfect meals. Keep easy protein to hand, such as tinned fish, ready-cooked chicken, eggs, milk, yoghurt and a tub of protein powder, so hitting your target never depends on cooking something elaborate.

Does timing matter, and do you need supplements?

You may have heard about an anabolic window, the idea that you must eat protein within minutes of training. In reality, your total protein and calories across the whole day matter far more than the exact timing. Eating within a couple of hours either side of a session is a fine habit, but there is no need to rush a shake the moment you rack the weights.

Supplements are convenient, not essential. Whey or plant protein powder is simply an easy, affordable way to add protein when whole food is not practical. Creatine is one of the most researched supplements there is and can support strength and muscle over time. Neither is magic, and neither replaces a solid diet. If your food is in order, supplements are the small final touch rather than the foundation.

Where does Edge fit in?

Edge is the training layer that turns good eating into visible results. Food supports muscle, but training is the trigger, and that is where a clear, progressive plan makes the difference. Edge builds a fully personalised programme across running, strength, HIIT and mobility, treating them as one plan rather than separate apps, so your strength work and your conditioning pull in the same direction. You can message a real coach anytime, which is handy when you want a sanity check on your training as your nutrition improves.

To be clear, Edge does not count your calories or track your macros. There are dedicated nutrition apps for that. What Edge does is give your muscle-building effort somewhere to land, with structured sessions, sensible progression and a coach in your corner. Sort your food using the principles above, then let your training do the job it is built for.

This article is general guidance, not medical advice. If you are new to exercise, returning from injury, pregnant, or managing a health condition, speak to your GP before starting, and see a physio for any niggle that does not settle.