How walnuts help curb the most destructive process in your body

You probably already know that walnuts are an incredibly healthy snack. We’ve talked in an earlier issue about how walnuts contain neuroprotective compounds that support brain health and motor function.

They also have demonstrated the ability to lower fasting insulin levels in overweight adults with type 2 diabetes. And the antioxidants in walnuts can fight the free radicals that can cause cell damage and potentially lead to cancer.

Walnuts also have many proven heart benefits…

  • They contain alpha-linolenic acid (ALA), a plant-based omega-3 fatty acid that may help lower blood pressure and is associated with a reduced risk of death following a heart attack.
  • The oil in walnuts has been shown to lower cholesterol levels.
  • The form of vitamin E in walnuts, gamma-tocopherol, has been found to provide significant protection from heart disease in men.
  • And research shows that certain compounds found in walnuts can help relax the smooth muscle of the arteries for better blood flow.

Now, a recent study has uncovered another powerful heart-health upside to adding walnuts to your daily diet…

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Walnuts’ impact on inflammation

According to research from the Walnuts and Healthy Aging (WAHA) study, people in their 60s and 70s who regularly eat walnuts may have lower levels of inflammation compared with those who don’t eat walnuts. Reduced inflammation is a marker associated with lower heart disease risk.

Findings from WAHA, the largest and longest study to date exploring the health benefits of walnuts, show regular consumption in older adults may reduce the risk of heart disease by reducing the concentration of certain inflammatory biomarkers.

In the study, more than 600 healthy older adults either consumed 30 to 60 grams of walnuts per day as part of their diet or followed their usual diet without walnuts for two years. Those who ate walnuts daily showed a reduction of up to 11.5 percent in known inflammatory markers in the blood. The mean age of the participants was 69 years, 66 percent were women, and 32 percent were treated with statins.

Of the 10 well-known inflammatory markers measured in the study, six were significantly reduced on the walnut diet, including the pro-inflammatory cytokine interleukin-1-beta. Inactivating interleukin-1-beta has been strongly connected with a decrease in coronary heart disease rates.

The study concludes that the anti-inflammatory effects of walnut consumption explains how they reduce cardiovascular disease beyond their proven ability to lower cholesterol.

“Short-term inflammation helps us heal wounds and fight infections, but inflammation that persists over time (chronic), caused by factors such as poor diet, obesity, stress and high blood pressure, is damaging instead of healing, particularly when it comes to cardiovascular health,” says Dr. Emilio Ros, a lead researcher in the study. “The findings of this study suggest walnuts are one food that may lessen chronic inflammation, which could help to reduce the risk for heart disease — a condition we become more susceptible to as we age.”

Studies of walnuts will continue

Chronic inflammation plays a critical role in the development and progression of atherosclerosis, a process by which plaque builds up in the arteries, “hardening” them. Atherosclerosis is the principal cause of heart attacks and stroke. Since the severity of atherosclerosis depends greatly on chronic inflammation, it’s important to intervene in the inflammatory process with dietary and lifestyle changes, such as adding walnuts to your daily diet.

Researchers continue to investigate the how and why behind the heart-healthy characteristics of walnuts. Dr. Ros cites a mix of essential nutrients like ALA and other bioactive compounds like polyphenols that likely play a role in walnuts’ anti-inflammatory effect and other benefits.

Researchers note that while these results are promising, they do have limitations. Study participants were older adults who were healthy and free-living, meaning they had the option to include a variety of foods in their diets in addition to walnuts. Also, they say further investigation is needed in more diverse and disadvantaged populations.

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Adding walnuts to your diet

The 30-to-60-gram portion of walnuts consumed daily by the study participants amounts to roughly between a quarter-cup and a half-cup. A quarter-cup is easy to consume as a snack, but a half-cup may be a bit on the large side for one sitting.

You could split the half-cup portion of walnuts into two snacks, or you could try incorporating it into your meals. For instance, you could add walnuts to your breakfast cereal or oatmeal, scatter them over a lunchtime salad, or use them in place of pine nuts for homemade pesto and pour it over pasta, chicken or fish for dinner. Walnuts are also delicious baked into sweet breads or muffins.

Most walnuts found on the market in the United States are English walnuts, characterized by their size and the light brown color of their shells. But there’s another variety, the black walnut, that grows in the eastern and central parts of the U.S. and gives an extra health boost.

Both black and English walnuts contain phytosterols, which research has identified as helping to prevent obesity, diabetes and heart disease. However, studies have found that black walnuts actually contain more of the disease-fighting compound than English walnuts.

Editor’s note: There are numerous safe and natural ways to decrease your risk of blood clots including the 25-cent vitamin, the nutrient that acts as a natural blood thinner and the powerful herb that helps clear plaque. To discover these and more, click here for Hushed Up Natural Heart Cures and Common Misconceptions of Popular Heart Treatments!

Sources:

Study shows older adults could reduce their risk of heart disease by eating walnuts, which have an anti-inflammatory effect on the body — PR Newswire

Effects of 2-Year Walnut-Supplemented Diet on Inflammatory Biomarkers — Journal of the American College of Cardiology

The Best Nut to Crackdown on Chronic Disease Risk? — Easy Health Options

Healthy Fat’s No Substitute for How Walnuts Lower Your Blood Pressure — Easy Health Options

Black walnuts contain heart-healthy nutrients that can stave off obesity and cardiovascular disease — MedicalXpress

What’s the Difference Between English Walnuts and Black Walnuts? — Serious Eats

Carolyn Gretton

By Carolyn Gretton

Carolyn Gretton is a freelance writer based in New Haven, CT who specializes in all aspects of health and wellness and is passionate about discovering the latest health breakthroughs and sharing them with others. She has worked with a wide range of companies in the alternative health space and has written for online and print publications like Dow Jones Newswires and the Philadelphia Inquirer.

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