Which Nuts Are Best for Men? 6 Science-Backed Picks

Nuts are one of the easiest healthy foods a man can add to his day. They’re portable, filling, and need zero cooking. But with so many choices, you might wonder which nuts are best for men and what each one actually does for you.

This guide breaks down the best nuts for men based on nutrients and research, from heart health to fertility to prostate concerns. You’ll learn what studies really show, which nuts to limit, how much to eat, and simple ways to fit them into your routine.

Key Takeaways

• Walnuts, almonds, cashews, and a few Brazil nuts are among the best nuts for men, each for different reasons.
• Heart health matters most. Heart disease is the leading cause of death for men, and regular nut eating is linked to lower cardiovascular risk.
• A mixed-nut trial in young men found improvements in several sperm measures after 14 weeks.
• Cashews and almonds supply zinc and magnesium, two minerals men need in larger amounts than women.
• Brazil nuts need limits. Just one nut can exceed the daily selenium recommendation.
• About 1 ounce a day of plain, unsalted nuts is a smart target for most men.

Why Nuts Matter for Men’s Health

Men face some specific health risks, and the biggest is heart disease. According to the CDC, heart disease is the leading cause of death for men, women, and most racial and ethnic groups.

That’s where nuts come in. Harvard’s Nutrition Source reports that eating about one ounce of nuts five or more times per week is linked to lower cardiovascular risk. Nuts provide healthy fats, protein, vitamin E, folate, potassium, and fiber, a mix that supports a heart-healthy diet. Learn more in our guide to nuts and heart health.

Men also need more of certain minerals than women do. For example, adult men need 11 mg of zinc a day and 400 to 420 mg of magnesium. Several nuts are good sources of both.

Nutritional Profile: The Best Nuts for Men Compared

Here’s how popular nuts stack up on the nutrients that matter most for men. All values are for a 1-ounce (about 28-gram) serving.

Peanuts are technically legumes, but they’re usually grouped with nuts.

Nuts also provide protein. One ounce of walnuts has about 4.3 grams of protein, and dry-roasted cashews have about 4.3 grams. For more on this, see whether nuts are high in protein.

Which Nuts Are Best for Men? The Top Picks

Based on nutrients and research, here are the best nuts for men and what each one brings to the table.

1. Walnuts: Best Nuts for Men’s Heart Health

Walnuts are a standout source of ALA, a plant-based omega-3 fat. One ounce provides 2.57 grams of ALA, more than the 1.6 grams adult men need each day.

Walnuts were also the largest part of the nut mix in the FERTINUTS trial on male fertility, discussed below. They have about 185 calories per ounce, so portion size matters. Each ounce also brings about 1.9 grams of fiber and 45 mg of magnesium, which is part of why walnuts rank among the best nuts for men who want more from every snack. Read more about whether walnuts are healthy.

2. Almonds: Best Nuts for Men Who Need Magnesium

Almonds are rich in magnesium, with 80 mg per ounce. That’s helpful because the NIH reports that 48% of Americans get less magnesium from food and drinks than they need.

Almonds are also one of the best food sources of vitamin E, with 6.8 mg, or 45% of the Daily Value, per ounce. Our guide on whether almonds are healthy has more details.

3. Cashews: Best Nuts for Men Seeking Zinc

Cashews offer more zinc than many nuts, with 1.59 mg per ounce of dry-roasted cashews. They also provide 74 mg of magnesium per ounce.

Zinc helps with immune function, protein and DNA synthesis, wound healing, and cell division. A serving of cashews won’t cover all of a man’s zinc needs, but it adds up alongside other foods. The NIH notes that oysters contain more zinc per serving than any other food, with meat and seafood also among the richest sources, so cashews are a helpful plant-based option rather than a replacement. Learn more about whether cashews are healthy and how cashews affect cholesterol.

4. Brazil Nuts: Best for Men Only in Small Amounts

Brazil nuts are extremely high in selenium. A single nut contains 68 to 91 micrograms, while adults need just 55 micrograms a day. The adult upper limit is 400 micrograms a day.

So one or two Brazil nuts is plenty. As we’ll explain in the prostate section, more selenium isn’t better for men. Our guides on whether Brazil nuts are healthy and how many Brazil nuts to eat explain safe portions.

5. Hazelnuts and Peanuts: Budget-Friendly Best Nuts for Men

Hazelnuts provide 4.3 mg of vitamin E per ounce and were part of the FERTINUTS nut mix. Peanuts add a bit of vitamin E, at 2.2 mg per ounce, plus 0.8 mg of zinc.

Pistachios, pecans, and macadamias also fit into a healthy diet, though they’ve been studied less for men’s health specifically. Our complete guide to nuts compares them all.

Heart Health: The Biggest Reason Nuts Are Best for Men

Because heart disease is the top killer of men, it’s the most important reason to eat nuts.

What the Research Shows

A landmark 2013 study in the New England Journal of Medicine tracked tens of thousands of women along with 42,498 men in the Health Professionals Follow-up Study, who were followed from 1986 to 2010. Across both groups, people who ate nuts seven or more times a week had a 20% lower risk of death during the study than those who didn’t eat nuts.

Nut eating was also linked to fewer deaths from heart disease, cancer, and respiratory disease. Because this was an observational study, it shows an association, not proof that nuts caused the benefit.

How Nuts May Help the Heart

Researchers think several nutrients work together rather than any single one. Harvard notes that nuts are rich in arginine, an amino acid, along with healthy fats and fiber. Walnuts add plant omega-3s on top of that.

Nuts also supply magnesium. The NIH explains that magnesium helps run more than 300 enzyme systems, including ones involved in blood pressure regulation, blood glucose control, and muscle and nerve function. That’s one reason magnesium-rich nuts like almonds and cashews are worth including.

Male Fertility: Which Nuts Are Best for Men Trying to Conceive?

This is one area where research is specific to men, and the early results are interesting.

The FERTINUTS Trial

In the Spanish FERTINUTS trial, 119 healthy men aged 18 to 35 were randomly assigned to either their usual Western-style diet or the same diet plus 60 grams a day of mixed nuts for 14 weeks. The nut mix was 30 grams of walnuts, 15 grams of almonds, and 15 grams of hazelnuts.

The nut group showed improvements in sperm count, vitality, motility, and morphology compared with the control group. The researchers also reported lower sperm DNA fragmentation, a marker of sperm damage.

What It Means and Its Limits

These results are promising, but they come from one trial in healthy young men. The study didn’t measure whether more couples got pregnant. The research was also partly funded by a nut industry group, which is worth knowing when weighing the findings.

If you and your partner are trying to conceive, adding nuts to a healthy diet is a low-risk step. But it’s not a substitute for medical advice from a fertility specialist.

Sexual Health: What the Best Nuts for Men Can and Can’t Do

You may have seen headlines claiming nuts help with erections. Here’s what the research actually found.

A follow-up analysis of 83 men from the FERTINUTS trial looked at sexual function. Men who ate the nut mix reported improved orgasmic function and sexual desire compared with the control group. However, there was no significant difference in erectile function between the groups.

This was a small study in healthy young men, and the outcomes were self-reported. So nuts aren’t a treatment for erectile dysfunction.

That matters because erection problems often have medical causes. The NIDDK lists heart and blood vessel diseases, high blood pressure, and diabetes among the conditions that can lead to erectile dysfunction, and notes that it may be a symptom of another health problem. If you notice changes, talk with your doctor rather than relying on diet alone.

Prostate Health: Are Some Nuts Best for Men’s Prostate?

Prostate cancer is a top concern for many men, so it’s worth looking at the evidence carefully.

Nuts and Prostate Cancer

A Harvard-led study of 47,299 men followed for 26 years found no link between nut eating and the risk of being diagnosed with prostate cancer. However, among men who already had prostate cancer, those who ate nuts five or more times a week had a 34% lower rate of death from any cause.

The study didn’t find a link between nuts and deaths from prostate cancer itself, and it wasn’t designed to explain why overall survival was better. Still, it’s reassuring evidence that nuts are a reasonable part of the diet for men with prostate cancer.

Why More Selenium Isn’t Better

Brazil nuts are often promoted for prostate health because of their selenium. But a major trial called SELECT, which included 35,533 men, found that selenium supplements did not lower prostate cancer risk.

In fact, men with higher selenium levels at the start had an increased risk of high-grade prostate cancer when they took selenium supplements. The researchers recommended that men over 55 avoid selenium supplements above recommended amounts. That’s another reason to keep Brazil nuts to one or two at a time.

Food First, Not Vitamin E Pills

The same SELECT trial tested vitamin E supplements. Men who took 400 IU a day had a 17% higher risk of prostate cancer than those taking a placebo. Getting vitamin E from foods like almonds and hazelnuts is very different from taking high-dose pills.

Who Benefits Most From the Best Nuts for Men?

Most men can benefit from adding nuts, but some may gain more:

• Men with heart risk factors: Since heart disease is the leading cause of death for men, heart-healthy foods like nuts are especially valuable.
• Men trying to conceive: The FERTINUTS trial suggests nuts may support sperm quality, though more research is needed.
• Men who fall short on magnesium: With nearly half of Americans getting too little, almonds and cashews can help close the gap.
• Older men: A large UK study of 50,386 adults found that daily nut eating was linked to a 12% lower risk of dementia, with the biggest benefit at up to about 30 grams a day of mostly unsalted nuts. See our guide to nuts for brain health.
• Active men: Nuts provide protein and energy to help fuel busy days. A 1-ounce serving of dry-roasted cashews, for example, has about 4.3 grams of protein and 163 calories.

Risks of the Best Nuts for Men and Who Should Be Cautious

Nuts are safe for most men, but keep these points in mind.

Allergies. Tree nuts and peanuts are among the FDA’s nine major food allergens. Severe reactions can cause anaphylaxis, which can be life-threatening. Avoid any nut you’re allergic to.

Selenium overload. Too many Brazil nuts can cause selenium toxicity, with signs like hair loss, brittle nails, and a garlic odor on the breath. Other possible signs include skin rash, nausea, diarrhea, fatigue, and irritability. Even among the best nuts for men, Brazil nuts are the one where more is clearly not better.

Calories. Nuts average about 185 calories per ounce. Large handfuls every day can add up. See whether nuts are fattening.

Too much zinc from supplements. The upper limit for adults is 40 mg of zinc a day. You won’t reach that from nuts, but it’s easy to overshoot with high-dose supplements.

Salted and candied nuts. Harvard notes that nuts covered in chocolate or with lots of sugar or sodium are probably not as good as plain nuts.

How Many of the Best Nuts for Men Should You Eat Daily?

For most men, about 1 ounce (28 to 30 grams) a day is a good target. Harvard defines a handful as about 28 grams, or one ounce, and eating that amount five or more times a week is linked to lower heart risk.

The FERTINUTS trial used a larger amount, 60 grams a day, for 14 weeks. That’s about two ounces, which adds more calories, so it may not suit every man’s goals.

Brazil nuts are the exception. Stick to one or two at a time, not a full ounce.

Practical Tips for Eating the Best Nuts for Men

Here are easy ways to work more nuts into your week:

1. Keep a portioned stash. Pre-pack 1-ounce servings for work, the gym, or the car.
2. Upgrade breakfast. Add walnuts or almonds to oatmeal, yogurt, or a smoothie.
3. Swap out chips. Choose a handful of nuts instead of salty snacks.
4. Make a men’s mix. Combine walnuts, almonds, and hazelnuts, like the FERTINUTS blend.
5. Pick plain or dry-roasted. Skip heavily salted or candy-coated versions. Our guide explains whether roasted nuts are healthy.
6. Add one Brazil nut, not ten. Toss a single Brazil nut into your mix a few times a week.

Myths vs. Facts About the Best Nuts for Men

How the Best Nuts for Men Fit a Healthy Lifestyle

Nuts work best as part of an overall healthy eating pattern, not as a magic food. Think of them as a smart swap for less healthy snacks, alongside vegetables, fruits, whole grains, beans, and fish.

Because heart disease is the leading cause of death for men, regular checkups with your doctor matter just as much as what you snack on. A daily handful of nuts is one simple habit that supports those bigger goals.

Here’s what a nut-friendly day might look like for a busy man:

• Breakfast: Oatmeal or yogurt topped with a small handful of chopped walnuts.
• Mid-afternoon: A 1-ounce mix of almonds and cashews instead of chips or candy.
• Dinner: A salad or stir-fry sprinkled with toasted hazelnuts or peanuts.
• A few times a week: One Brazil nut added to your snack mix.

This kind of pattern spreads different nuts across the day, so you get omega-3s, magnesium, zinc, and vitamin E without overdoing calories or selenium.

Frequently Asked Questions

What is the healthiest nut for men?

There isn’t one single best nut. Walnuts stand out for plant omega-3s, almonds for magnesium and vitamin E, and cashews for zinc. A mix of different nuts gives men the widest range of nutrients, and a mixed-nut blend was used in the main trial on male fertility.

Are nuts good for male fertility?

Early research is promising. In a trial of healthy men aged 18 to 35, eating 60 grams of mixed nuts daily for 14 weeks improved several sperm measures, including count and motility. However, it was one study, it didn’t track pregnancy rates, and it was partly funded by a nut industry group.

Do nuts help with erectile dysfunction?

The evidence doesn’t show that nuts treat erectile dysfunction. In a trial of healthy men, nuts improved self-reported sexual desire and orgasmic function, but erectile function didn’t change significantly. Because erection problems can signal heart issues, men who notice changes should talk with their doctor.

Are Brazil nuts good for men’s prostate health?

Not in large amounts. A major trial found selenium supplements didn’t lower prostate cancer risk and raised the risk of high-grade prostate cancer in men with higher selenium levels. One or two Brazil nuts occasionally is fine, but more isn’t better for the prostate.

How many nuts should a man eat per day?

About 1 ounce, roughly a small handful, is a good daily target for most men. Eating that amount five or more times a week is linked to lower heart disease risk. Brazil nuts are the exception, so limit them to one or two at a time because of their selenium.

Are cashews good for men?

Yes, cashews are a good choice for men. One ounce of dry-roasted cashews provides about 1.6 mg of zinc and 74 mg of magnesium, two minerals men need more of than women. Choose unsalted cashews and keep portions to about a handful.

Conclusion: Which Nuts Are Best for Men?

So, which nuts are best for men? Walnuts, almonds, cashews, and hazelnuts top the list, with Brazil nuts as a small, occasional extra. Together, they offer omega-3s, magnesium, zinc, vitamin E, and protein, nutrients that support heart health, a man’s biggest health risk.

The research is strongest for heart health and promising for sperm quality, but nuts aren’t a cure for erectile dysfunction or prostate problems. Your best move is to enjoy about 1 ounce of plain, unsalted mixed nuts most days as part of a balanced diet and regular checkups with your doctor.

Medical disclaimer: This article is for general information only and is not a substitute for professional medical advice, diagnosis, or treatment. If you have concerns about heart health, fertility, sexual health, prostate health, or a nut allergy, talk with your doctor or a registered dietitian before changing your diet.

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