The Top 10 Best Nuts for Building Muscle and Losing Fat

Nuts can be one of the best foods to include in a muscle-building or fat-loss diet, but they can also be one of the easiest foods to overeat. They're packed with healthy fats, protein, fibre, vitamins, minerals and antioxidants, yet they're extremely calorie-dense. That means the difference between a useful 25-gram portion and casually eating half a bag can easily amount to hundreds of extra calories.

For building and maintaining muscle, your total daily protein intake remains far more important than any individual nut. Sports-nutrition guidance suggests around 1.4–2.0 grams of protein per kilogram of bodyweight per day is sufficient for most exercising people, while maintaining a higher protein intake can be particularly useful for preserving lean mass during a calorie deficit. Nuts shouldn't therefore replace your main high-quality protein sources, but they can make an excellent addition to a well-designed diet.

Here are our top 10, ranked.

1. Almonds

Best all-rounder for muscle and fat loss.

Almonds take our number-one position because they provide an excellent combination of protein, fibre and healthy fats while being extremely easy to incorporate into a bodybuilding diet. Around 28 grams provides approximately 6 grams of protein. They're also a useful source of magnesium and vitamin E.

The biggest advantage during fat loss is portion control. Almonds are satisfying enough to make a small serving feel like a proper snack, especially when eaten slowly rather than thrown into your mouth by the handful.

How much? Aim for around 20–30 grams per day. If you're actively cutting calories, 20 grams is plenty.

2. Pistachios

Best dieting nut.

Pistachios are superb when you're trying to get lean because the process of removing the shells naturally slows down eating. A one-ounce serving provides around 6 grams of protein and 3 grams of fibre, alongside potassium and predominantly unsaturated fats.

Buy them in their shells and you have another advantage: the pile of empty shells provides a visual reminder of how much you've eaten. Just avoid heavily salted varieties if you're trying to keep sodium intake down.

How much? Around 25–30 grams per day.

3. Peanuts

Best for protein and value.

Technically peanuts are legumes rather than true nuts, but nutritionally and practically they're usually eaten as nuts, so they deserve a place here. They're particularly useful for people training with weights because they're relatively protein-rich, inexpensive and extremely convenient.

Peanut butter can also fit perfectly into a muscle-building diet, but there's a catch: two casual spoonfuls can quickly turn into four. If fat loss is your priority, weigh your portion rather than eating directly from the jar.

How much? Around 20–30 grams of peanuts, or approximately 15–20 grams of peanut butter when calories are tightly controlled.

4. Walnuts

Best for omega-3 fats.

Walnuts stand apart because they're particularly rich in alpha-linolenic acid (ALA), a plant-based omega-3 fatty acid. They also provide protein, fibre, minerals and polyphenols, making them an excellent addition to an overall healthy diet.

They aren't the highest-protein nut — around an ounce provides roughly 4 grams — so don't choose walnuts primarily as a protein source. Think of them instead as a way of improving the nutritional quality of your overall diet.

How much? Around 20–25 grams per day.

5. Cashews

Best for a muscle-building diet.

Cashews are easy to eat, work brilliantly with both sweet and savoury meals and provide roughly 5 grams of protein per ounce. They also supply useful minerals including magnesium and copper.

They're particularly good when you're trying to gain muscle because they're an easy way of increasing calorie intake without eating another huge meal. That same characteristic means you need to be more careful with them when dieting.

How much? Around 25–30 grams when building muscle and closer to 15–20 grams during an aggressive fat-loss phase.

6. Brazil Nuts

Best for selenium.

Brazil nuts are nutritional powerhouses, but they're a perfect example of why more isn't necessarily better. They're exceptionally rich in selenium, an essential trace mineral, so you don't need to eat a large handful to obtain their nutritional benefits.

They're also relatively calorie-dense and provide around 4 grams of protein per ounce. Because selenium intake can become excessive, Brazil nuts aren't something we'd recommend eating by the bag.

How much? Usually just 1–2 Brazil nuts per day is enough.

7. Hazelnuts

Best heart-healthy snack.

Hazelnuts contain predominantly unsaturated fats along with fibre, vitamin E and around 4 grams of protein per ounce. They aren't going to transform muscle growth on their own, but they're an excellent nutrient-dense food to rotate with almonds and walnuts.

Avoid confusing plain hazelnuts with chocolate hazelnut spreads. Once large quantities of sugar and additional fats are added, you're dealing with a completely different food.

How much? Around 20–25 grams.

8. Pine Nuts

Best for adding to meals.

Pine nuts provide roughly 4 grams of protein per ounce along with unsaturated fats and useful micronutrients. Their real strength is how easily they improve an otherwise boring bodybuilding meal. Sprinkle a small quantity over chicken, vegetables, salads or Mediterranean-style dishes and suddenly the meal becomes far more interesting.

The downside is that they're tiny and extremely easy to overeat, so don't pour them straight from the packet.

How much? Around 15–20 grams is plenty.

9. Pecans

Best low-sugar indulgence.

Pecans are delicious and rich in unsaturated fats, but they're not particularly impressive as a protein food compared with almonds, pistachios or peanuts. They're also very calorie-dense, which pushes them further down our list for anyone whose main objective is fat loss.

That doesn't make them unhealthy. It simply means portion size becomes particularly important.

How much? Around 15–20 grams when dieting or up to 25 grams when calories aren't restricted.

10. Macadamia Nuts

Best for healthy fats, but easiest to overeat.

Macadamias taste so good that stopping after a sensible portion can be the hardest part. They're rich in monounsaturated fats but comparatively low in protein, making them less attractive specifically for muscle building.

They're perfectly suitable as part of a healthy diet, but if your target is getting ripped, treat them almost like a luxury food rather than something to eat freely.

How much? Around 15–20 grams.

The Ranking at a Glance

1. Almonds – best overall
2. Pistachios – best for dieting
3. Peanuts – best protein/value combination
4. Walnuts – best for plant omega-3s
5. Cashews – excellent when building muscle
6. Brazil nuts – best for selenium
7. Hazelnuts – excellent all-round nutrition
8. Pine nuts – great addition to meals
9. Pecans – nutritious but calorie-dense
10. Macadamias – excellent fats but relatively little protein

The Biggest Mistake People Make With Nuts

The biggest mistake is assuming that because nuts are healthy, calories don't matter. They do. Fat loss ultimately requires a sustained calorie deficit.

A small 25–30 gram serving of nuts can fit beautifully into a fat-loss diet. Sit in front of the television with a 300-gram packet and absent-mindedly finish half of it and you've potentially turned a healthy snack into a very substantial meal's worth of calories.

If you're serious about getting lean, weigh your nuts for a week or two. You'll quickly learn what a genuine 20- or 30-gram serving looks like.

The Best Muscle-Building Nut Mix

For someone training hard who wants the nutritional benefits without going crazy on calories, try making your own mixture rather than buying one filled with chocolate, dried fruit, salt or added oils.

Mix almonds, pistachios, walnuts and a small number of Brazil nuts. Keep each serving to around 25–30 grams when fat loss is the priority. If you're deliberately trying to gain muscular bodyweight and need additional calories, you can increase the serving depending on your overall daily energy requirements.

Nuts work particularly well alongside a more substantial protein source. For example, combine a small serving of almonds with Greek yoghurt, or add walnuts to a high-protein breakfast. Nuts contribute protein, but they shouldn't be relied upon as your main muscle-building protein source. Sports-nutrition recommendations generally favour meals containing roughly 20–40 grams of high-quality protein for maximising muscle protein synthesis, depending on factors such as body size and training.

Muscle Gain vs Fat Loss: Change the Portion

If you're building muscle, 30–40 grams of mixed nuts can be a convenient way of adding energy and nutrients to your diet. If you're trying to reveal your abs, reduce that to approximately 20–25 grams and account for the calories within your daily intake.

That's the key with nuts: don't remove them simply because they're high in fat. Control them because they're high in calories.

Choose mainly almonds, pistachios, peanuts and walnuts, rotate the others for nutritional variety, keep portions sensible and combine them with a high-protein diet and progressive resistance training. Done properly, a small handful of nuts can be one of the easiest daily additions to a diet designed to build muscle while keeping body fat under control.