Best and Worst Nuts for Your Health

Nuts are nature's way of showing us that good things come in small packages. These bite-size nutritional powerhouses are packed with heart-healthy fats, protein, vitamins, and minerals.

Of course, you can get too much of these good things: Nuts are high in fat and calories, so while a handful can hold you over until dinner, a few more handfuls can ruin your appetite altogether. And although nuts are a healthy choice by themselves, they'll quickly become detrimental to any diet when paired with sugary or salty toppings or mixes.

Here's a look at the pros and cons of different nuts, as well as the best and worst products on supermarket shelves today.

Almonds, Cashews, Pistachios

All nuts are about equal in terms of calories per ounce, and in moderation, are all healthy additions to any diet. "Their mix of omega-3 fatty acids, protein, and fiber will help you feel full and suppress your appetite," says Judy Caplan, RD, a spokesperson for the Academy of Nutrition and Dietetics.

Watch the video: Guilt-Free Snack: Honey-and-Chili Glazed Almonds

The lowest-calorie nuts at 160 per ounce are almonds (23 nuts; 6 grams protein, 14 grams fat); cashews (16 to 18 nuts; 5 grams protein, 13 grams fat); and pistachios (49 nuts; 6 grams protein, 13 grams fat). Avoid nuts packaged or roasted in oil; instead, eat them raw or dry roasted, says Caplan. (Roasted nuts may have been heated in hydrogenated or omega-6 unhealthy fats, she adds, or to high temperatures that can destroy their nutrients.)

Walnuts

While all nuts contain eart-healthy monounsaturated fats, walnuts (14 halves contain 185 calories, 18 grams fat, 4 grams protein) have high amounts of heart-healthy alpha linoleic acid (ALA), a type of omega-3 fatty acid found in plants. Research has suggested that ALA may help heart arrhythmias, and a 2006 Spanish study suggested that walnuts were as effective as olive oil at reducing inflammation and oxidation in the arteries after eating a fatty meal. The authors of this study, funded in part by the California Walnut Commission, recommended eating around eight walnuts a day to achieve similar benefits.

Peanuts

Technically legumes but generally referred to as nuts, peanuts are high in folate—a mineral essential for brain development that may protect against cognitive decline. (It also makes peanuts a great choice for vegetarians, who can come up short on folate, and pregnant women, who need folate to protect their unborn babies from birth defects, says Caplan.) Like most other nuts, peanuts are also full of brain-boosting healthy fats and vitamin E, as well. One ounce of peanuts (about 28 unshelled nuts) contains about 170 calories, 7 grams protein, and 14 grams fat.

Almonds

Relatively low in calories, almonds have more calcium than any other nut, making them a great food for overall health. Plus, they are rich in fiber and vitamin E, an antioxidant that helps fight dangerous inflammation and possibly health conditions such as lung cancer and age-related cognitive decline.

Because they're so versatile, almonds are often a favorite among nut eaters: You can buy them raw, toasted, slivered, or coated with a variety of fun flavors.

Choose 100- to 200-calorie packs

Because nuts are so high in calories (and so tasty, to boot!), it's important to practice portion control when eating them as a snack. We love Blue Diamond Almonds 100-calorie snack packs, available in six flavors, including Cinnamon Brown Sugar and Dark Chocolate. Want more variety? Pick up , each containing a 200-calorie mix of cashews, almonds, and macadamia nuts.

Go for cocoa-dusted almonds

Rather than hiding your nuts under a thick layer of sugary chocolate candy—think Jordan almonds or peanut M&Ms—keep it simple with  ($39 for 12; ). These nuts are lightly dusted with cocoa powder and sweetened with Sucralose, and have 150 calories, 13 grams fat, and 1 gram of sugar per ounce.

We'd give you a "worst" nuts for chocolate lovers, but the possibilities are practically endless. Just think of it this way, says Caplan: Anything that's more chocolate than nut really should be considered candy—not as a way to get your daily quota of healthy fats.

Try all-natural glazed nuts

Want something sweet and satisfying but without the extra calories and high-fructose corn syrup? Look no further than  ($29 for 6; ) in flavors like Almonds with Cranberries, Honey, and Sea Salt (160 calories, 11 grams fat, 5 grams protein per ounce) or Cashews with Pomegranate and Vanilla (150 calories, 10 grams fat, 4 grams protein per ounce). They're sweetened with organic cane juice and tapioca syrup, and each contains only 6 grams of sugar per ounce. Just be careful not to eat the whole bag!

Look for 'lightly salted'

If you don't have high blood pressure or haven't been warned away from salt by your doctor for other reasons, a handful or two of salted nuts a day won't hurt you, says Caplan, who has a private nutrition practice in Vienna, Va.

Nuts are, of course, available unsalted. But to satisfy a salty craving without going overboard, look for in-between varieties like , almonds, and cashews (45-55 mg sodium), or (80 mg). Check ingredient labels, too: Some brands, like (75 mg sodium), contain less salt than others.

Raw nuts, seeds, and dried fruit

Trail mix is available in countless varieties and from countless brands. "Look for trail mix with raw nuts," suggests Caplan. "Or if the nuts are roasted, look for the words 'dry roasted' rather than 'oil roasted.'"

Nuts pair great with fruit, seeds, and perhaps even a little dark chocolate, Caplan adds; just pay attention to the calorie count and serving size. We love  ($20 for 5; ) (160 calories, 12 grams fat, 8 grams protein per ounce) of organic almonds, pumpkin seeds, and dried tart cherries. If you're more of a granola guy or gal, treat yourself to a quarter cup of  ($32 for 6; ) (140 calories, 7 grams fat, 3 grams protein) with almonds and walnuts.

Pair them with a healthy carb

Now you know all about which nuts are good for what—but to get the most health benefits, it's also important to pay attention to how you eat them. "Nuts are a great thing to eat when you're having a carbohydrate like fruit or juice, because it helps slow down digestion and the breakdown of sugar," says Caplan.

A few winning nut-and-carb combos: Sprinkle them on salads, add them to low- or nonfat yogurt, or spread nut butter on slices of apple or pear. On the go? Pick up a 150-calorie pack of Earthbound Farms Dippin' Doubles Apples & Peanut Butter (11 grams fat, 5 grams protein).

A mixed bag!

So which is the healthiest nut overall? A 2004 review in the Harvard Medical School Family Health Guide tackled this tough question. Luckily, they concluded, we don't have to pick just one. Mixed nuts, ideally raw and unsalted, provide the best variety of nutrients and antioxidants. We like:  ($9; ).