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The Ultimate Guide For Meal Prep For Muscle Gain & Weight Loss

Every training goal ultimately starts with nutrition. Meal prep is your greatest ally.

If you’ve made it your mission to reap the full benefits of those hours in the pain cave, dialling in your nutrition is the most effective way to go about it. But you know that already. 

You’ve read this advice before. That a breakfast of scrambled eggs will fuel your muscles better than a chocolate-filled croissant will come as no surprise. And when fat loss is your focus, it would probably help to swerve the biscuit tin every now and again. It’s hardly rocket science.

The problem is, knowing doesn’t always equate to ‘doing’. You snack when you’re not supposed to. You eat out because you don’t have time to cook a healthy meal. The good news is, you might not be entirely to blame – turns out, your empty stomach isn’t the only thing compelling you to grab a slice of pizza from the work canteen.

It’s a psychological phenomenon called ‘decision fatigue’. You make around 35,000 decisions every day on average – hit snooze or get up? Toast or porridge? White shirt or blue? – and the more you make, the more taxing each one becomes until eventually, your exhausted brain looks for shortcuts and it starts acting impulsively.

Willpower isn’t something you either have or you don’t – it’s a form of mental energy that gets depleted every time you make a decision, a series of experiments conducted by Florida State University found. And that’s not all.

Your brain is the most energy-demanding organ in your body, and it uses glucose as its primary fuel source. As your mental energy drains with each fleeting decision, your body looks for a quick way to replenish its dwindling stocks: sugar. Such is the fat-loss paradox. You need willpower to stop yourself from grazing – but in order to fuel willpower, you need to eat.

This is why meal prep is your greatest muscle-building, fat-torching ally. By pre-batching breakfast, lunch, dinner and snacks ahead of time, you deal with a decision-making double-whammy: not just what to eat and when, but also how much.

“When our schedules are packed, meal times can go to the wayside,” says Kevin Curry, founder of food blog Fit Men Cook. “We eat mindlessly, paying little attention to the caloric and nutritional value of the food, and we skip meals, which leads to overeating at the next meal in order to satisfy our intense hunger. 

“Having healthy meals and snacks ‘at arm’s length’ enables us to continue our hectic and busy lifestyles but with more nutritious food so we can accomplish our fitness and wellness goals at the same time.”

Here, you’ll find everything you need to meal prep like a pro, freeing up brain space for other, more pressing decisions.

The Pros and Cons of Meal Prep

Granted, it’s not all plain sailing. If you don’t like your lunch, you’re stuck with it for another day or two. You’re forced to dedicate a chunk of your Sunday afternoon to cooking. Your weekly shopping list requires meticulous planning, because one missed ingredient could throw off a week’s worth of meals. You have to carry containers everywhere. And if your plans change, the food goes to waste.

But as they say – if it was easy, everyone would do it. By giving an hour or two of your weekend to meal prep, you’ll free up your weekday evenings. The only thing you’ll have to wash up is the plastic containers. Not only will your scales be lighterwithout those high street sandwich lunches; your wallet will be thankful too. And if you’re the macro-counting kind and have a specific training goal in your sights, you can map out a week’s worth of meals down to the very last gram.

“Preparing our meals in advance gives us a better estimate of monthly food costs while reducing miscellaneous food purchases,” says Curry. “Knowing what you’re going to eat on a daily basis will make the difference in both your health and your wallet.” Plus, it gets results. “I don’t just preach the importance of meal prep,” he adds, “I practice it, because it enabled me to obtain the results that I so desperately wanted.” Sounds like all that chopping might be worth it.

Meal Prep Ideas

The first step is to map out recipes for the meals you’re prepping i.e. breakfast, lunch, dinner and snacks. In its most stripped-back form, the foundation of a muscle-building meal contains approximately “two handfuls of vegetables, one fist-size portion of carbs, and a palm-size portion of protein,” Jo Travers, registered dietitian and author of The Low Fad Diet.

Protein-wise, stick to lean options like chicken, fish, turkey, lean beef, eggs, tofu, and greek yoghurt. Keep carbs complex where possible, and don’t forget healthy fats – olive oil, avocado and nuts will keep you fuller for longer.

That said, man cannot get jacked on turkey, broccoli, and sweet potato alone. Well, he can, but his taste buds won’t thank him. Focus on cooking foods “that you love to eat and are easy to prepare,” suggests James Long, co-founder of health food blog When Harry Met Salad, particularly dishes you enjoy both hot and cold, in case you can’t access a microwave.

Batch cooking is the name of the game. To keep things interesting, try having a culinary theme for each week, Long suggests, such as ‘Mexican’ and ‘Indian’. Cooking and pre-portioning chilli or curry, for example, is far more practical than juggling multiple recipes. Once you have your meals mapped out, make a list of all the ingredients you need – along with quantities – and hit the shops. 

Easy Hacks to Take the Hassle out of Meal Prep

To keep your meals as fresh as possible, let them cool down completely before you refrigerate them, says Long. You’ll avoid the condensation that makes food go soggy. That said, don’t leave your food at room temperature for more than two hours.

If you’ve seen the ‘ripe avocado’ memes, you know how temperamental veg can be. To reduce food waste, make frozen and tinned foods your best friend. “I’ve been buying way more frozen vegetables such as chopped peppers, onions, peas and sweetcorn because I was getting fed up of binning bags of spinach and other vegetables that kept going off,” says Long.

If frozen really isn’t an option, consider buying an ethylene-absorbing gadget for your fridge. They can really extend the shelf life of your veg, says Travers, particularly the crunchy kind such as bell peppers, carrots and celery. “A coleslaw mix – without the mayo dressing; add that at the last minute – will keep better than chopped tomatoes and cucumbers,” she says.

Think of meal prepping as a high-intensity gym workout, says Curry. “Keep going until the routine is finished – while your food is cooking, clean up the kitchen. When the food is nearly complete, prep your food containers and spread them out on the counter or table.”

Use Meal Prep to Pimp Your Protein

When you’re prepping meat or fish, don’t slice it until you’re ready to eat to prevent it from drying out. About 30g of protein per meal is ideal for fat loss – that’s roughly a palm-sized portion.



Season a 1in-thick steak with salt and pepper and grill on medium-high to your desired doneness – about three minutes per side for medium rare. Let it rest for five minutes, then transfer.


Heat some oil in an ovenproof pan on medium-high. Season and cook until brown, two to three minutes per side. Transfer to the oven and roast at 200°C; five minutes for medium rare.



Place some extra-firm tofu on a cutting board between paper towels. Top with a baking sheet and heavy cans to weigh it down. Let it sit for 15 minutes, then slice. Heat oil in a pan on medium-high. Fry until golden brown, two minutes per side. Transfer to a paper towel and season.


Break firm tofu into large pieces on a baking sheet. Toss with oil, season and roast at 200°C, flipping once. Cook until golden brown, about 25-30 minutes.

Chicken Breast


Rub with oil, then season and grill on medium-high, four to six minutes per side. Use a griddle pan to add some smoky char.


Heat some oil in an ovenproof pan on a medium heat. Season the chicken and cook until golden brown, about three minutes per side. Transfer to an oven and roast at 200°C until cooked through – about 10 minutes.



Heat some oil in a frying pan on medium-high. Season and cook the fish until it’s golden brown and opaque throughout – roughly five minutes per side.


Place the salmon on a baking sheet. Season and roast at 200°C until it’s opaque – this will take roughly 10-12 minutes.


Season the salmon to taste and grill it on a medium-high heat for around four minutes per side.

Use Meal Prep to Revamp Your Veg

This is where most meal prep falls short. Cucumber slices and carrot batons might make you feel virtuous, but an unsatisfying lunch will only set you up for mid-afternoon snacking. Many vegetables are made more nutritious by cooking – and doing so will extend their shelf life, too.

Extra Sizzle

Rapeseed, sesame and olive oils are all good options for sautéing, though extra-

virgin olive oil has a lower smoke point (save that for your dressings). Heat a large pan on medium-high. Add a dash of oil, then the veg, and season. Toss well and then cook until tender.

  • Peppers: 6min
  • Green beans: 5min
  • Cherry tomatoes: 4min
  • Mushrooms: 11min

Roast to Your Health

On a baking tray, toss your veg with oil and season with salt and pepper. Throw in a few garlic cloves, too. Roast at 200°C until golden brown. Applying heat to veg makes it easier for your body to absorb nutrients such as beta-carotene and certain minerals.

  • Broccoli florets: 20min
  • Asparagus: 15min
  • Mushrooms: 25min
  • Cauliflower: 20min
  • Peppers: 15min
  • Cherry tomatoes: 15min

Blanch Out

Boiling vegetables causes nutrients to bleed into the water. Blanching preserves them – as well as keeping the veg crisp. Bring a pot of water to the boil with a pinch of salt. Throw your veg in and cook until just tender, then immediately transfer to ice water. Drain and pat dry.

  • Broccoli florets: 4min
  • Asparagus: 4min
  • Cauliflower florets: 5min
  • Green beans: 5min

Best Meal Prep Containers

A word on meal prep containers, because you’ve got to store and transport all those meals somehow. There are a few options available, from glass to multi-compartment plastic, with benefits and drawbacks to each style depending on what you’re making. Plastic containers are light and durable, while glass varieties are less likely to stain and keep food fresher for longer. Mason jars are ideal for keeping salads fresh, and Bento boxes make packing snacks and lunches super simple. Stainless steel containers look great, but they tend to be pricy and aren’t microwave-friendly. 

How to Meal Prep on a Budget

Unless you’re serving up lobster thermidor every day, meal prep is going to save you money. However, there are easy ways to make your pounds stretch even further – they just require a little bit more thought.

Keep recipes simple with easy-to-source, affordable ingredients, Long suggests. Think: potatoes, rice, pasta, lean protein and vegetables. Where possible, buy in bulk, and stick to supermarket own brands for oats, nut milks, and so on. 

Focus on frozen and tinned foods, and if you must buy fresh, “stick to vegetables and produce that is in season,” Long says. Oh, and buy foods you need to prep yourself, adds Travers. “You will pay a premium for ready chopped carrots, for example.”

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