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Nuts about Nuts: The Ultimate Snack for Health & Longevity

Let’s be honest, mid-afternoon rolls around and the snack cravings hit hard. Usually, it’s something like chocolate, chips, or cookies calling your name. But here’s a healthier option – grab a handful of nuts!

These tasty little powerhouses are loaded with fiber, healthy fats, and polyphenols, and they might just become your new favorite snack. What’s more, they’re packed with benefits that could boost your heart, brain power, and even your lifespan. Let’s dive into why nuts deserve a spot in your daily diet.

Nuts are Packed with Nutrients

Despite their small size, nuts come loaded with essential nutrients. They’re filled with healthy unsaturated fats, fiber, and protein to keep you feeling satisfied, plus magnesium and vitamin E for an added health boost. And, you only need a small handful per day to reap the benefits.

Interestingly, many of the nuts we like to munch on (like cashews and pistachios) aren’t true nuts at all – they’re actually classified as “drupes”. True nuts are defined as a dry fruit with a single seed encased in a hard shell, like chestnuts and hazelnuts. Just to confuse things further, peanuts are neither true nuts nor drupes, they’re actually members of the legume family.

The hazelnut is a true nut. © iStock.com/gece33

But whatever you call them, they’re all still packed full of healthy things like unsaturated fats, fiber and protein as well as a number of compounds with anti-oxidant and anti-inflammatory properties. So, whether true nuts or “drupes” they’re all little nutritional gems!

Heart Health Heroes

Nuts can benefit your heart in powerful ways. Regular consumption has been linked to reduced levels of “bad” cholesterol, lower blood pressure, and decreased inflammation, all of which support cardiovascular health.

Packed with heart-friendly nutrients like unsaturated fats, fiber, and antioxidants, nuts can lower cholesterol levels, reduce inflammation, and improve artery function. Even though some nuts contain up to 70% fat, most of it is unsaturated fat—the kind that actually supports heart health by helping to keep your blood vessels flexible and your cholesterol in check.

A five-year Spanish intervention study involving over 7,000 older adults found remarkable results: those who were asked to eat nuts at least three times per week were 40% less likely to die from cancer and 55% less likely from heart disease compared to those who didn’t eat nuts. And these findings held true even after researchers controlled for lifestyle factors like alcohol consumption, exercise, and smoking. That’s a strong case for adding nuts to your regular diet!

One of the most significant benefits of nuts is their impact on LDL cholesterol, the “bad” cholesterol that can build up in your arteries. Almonds, in particular, have been shown to reduce LDL levels, while walnuts contain alpha-linolenic acid, an omega-3 fatty acid that helps with healthy blood flow.

More Than Cholesterol: How Nuts Benefit Blood Vessels and Blood Pressure

Nuts also help relax and dilate blood vessels, which improves blood flow and can lower blood pressure. This effect may be due to the high levels of arginine in nuts, an amino acid that helps the body produce nitric oxide—a compound that relaxes blood vessels and keeps them flexible.

Studies that look at thousands of participants, like one involving over 300,000 people, show that regular nut eaters have a significantly reduced risk of weight gain over five years, which is also linked to a lower risk of heart disease. While nuts are high in calories, they help promote a feeling of fullness and actually reduce overall calorie intake by replacing less healthy snacks.

A Handful a Day is Plenty

You don’t have to go nuts with your portion sizes – a small handful (about 15-30 grams) per day is plenty to get the benefits to your heart health. And, it doesn’t matter which type of nuts you like best. Whether you prefer almonds, walnuts, or pistachios, all nuts provide a unique mix of nutrients that support cardiovascular health.

A Natural Brain Booster

Want a sharper memory or quicker thinking skills? Studies show that people who regularly eat nuts score better on cognitive tests and short-term memory. Researchers like Dr. Sze-Yen Tan from Deakin University in Australia have even found that nuts can improve blood flow in the brain, which may explain these mental perks.

And get this – the brain is about 60% fat, so a snack rich in good fats is a natural fit for mental sharpness.

Stay Younger, Longer

Nuts could be part of your anti-aging toolkit. They’re loaded with antioxidants and polyphenols, which fight inflammation and support cell health. Eating nuts is also linked to longer telomeres—those little protective caps at the ends of our DNA that help keep cells functioning well as we age.

Several studies have found a link between eating nuts and the length of these telomeres. The late Dr Michael Mosley says that as we get older our telomeres gradually start to shrink. Eventually they get too short to do their job and our cells struggle to function properly.

Studies show that eating nuts may help slow this process, effectively keeping your DNA younger and by extension helping you feel younger.

Interested in reading more about the health benefits of polyphenols? Check out our article on olive oil.

Nuts Can Trim Tour Waistline

It’s a myth that nuts will expand your waistline. Studies have found that people who eat nuts regularly tend to have healthier weights, and here’s why:

Feel Full for Longer: Nuts are high in fiber and protein, which help keep you feeling full for longer, meaning that you’ll likely be happy with a smaller portion at your next meal.

Less Fat Absorption: Believe it or not, we don’t absorb all the fat from nuts. Their structure keeps about 20% of the fat tucked away and out of reach during digestion.

Boosted Metabolism: Some research suggests nuts might even increase the energy your body burns.

So, as long as you don’t go overboard and keep to the 15 to 30 grams recommended daily amount, you should find that nuts are a healthy snack that also keep your waistline in check.

Nuts contain Cancer-Fighting Compounds

Nuts bring cancer-fighting potential to the table too. A five-year study from Spain found that people who ate nuts at least three times a week were significantly less likely to die from cancer.

Choose Your Favorites (No Bad Choices Here)

Whether you’re into almonds, walnuts, cashews, or pistachios, you’re making a good choice. Each nut has its unique benefits, but all are high in protein, healthy fats, and fiber.

Quick Tip: Go for unsalted varieties whenever possible. Too much salt can add up, and you’ll still get all the flavor and benefits with plain nuts.

Easy Ways to Add Nuts to Your Diet

Nuts are the ultimate grab-and-go snack, but they’re also fantastic in meals. Add a sprinkle of walnuts to your morning yogurt or oatmeal, toss some almonds in your salad, or enjoy a small handful with fruit.

Aim for 15-30 grams a day—about a small handful. It’s enough to get the health perks without going overboard.

The Bottom Line

So, next time you’re feeling peckish between meals, skip the chips and crack open some nuts. Not only will your heart, brain, and waistline thank you, but you might just find that this crunchy, satisfying snack is exactly what you’ve been missing. So, go nuts—it’s good for you!

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