Long before a significant and dangerous cardiovascular event, something happens in your arteries…

They become harder, narrower, and filled with a sticky plaque that slowly chokes your blood flow. These changes are known as atherosclerosis, and they occur in more than 3 million Americans each year.

Most people with atherosclerosis don’t know they have it until it’s too late, because it doesn’t have any obvious symptoms until the blockage becomes severe. But your doctor can check for it.

The thing is, whether you have atherosclerosis or not, everyone’s arteries harden some with age. That means, it’s a good idea to proactively protect your arteries, pronto.

So, what can you do to keep your arteries clear?

Eat your vegetables, that’s what. But what if you are just not a fan of the plant stuff? No problem — there’s just one kind you really need to get a little of every day for clear arteries…

The artery-clearing power of cruciferous vegetables

In 2018, Research at the University of Western Australia in Crawley found that older women who eat their vegetables have much clearer arteries.

The study included 954 women aged 70 or older. They were asked to fill out a food questionnaire and received sonograms to gauge the thickness of their carotid arteries.

Carotid arteries are in the neck, and like the arteries in your heart, they can develop atherosclerosis. The difference is that when carotid arteries get blocked, blood flow to the brain gets cut off, and you have a stroke rather than a heart attack.

The good news is that atherosclerosis can be prevented by pumping your body full of one kind of fresh produce…

The women in the study who ate a lot of vegetables had thinner artery walls than women who didn’t, meaning less atherosclerosis or buildup. Their arteries were 0.05 millimeters thinner. This may not sound like a lot, but researchers say every 0.1-millimeter decrease in carotid wall thickness lowers your risk of having a stroke or heart attack by 10 to 18 percent.

The food questionnaire asked women about their intake of five different types of vegetables. But, researchers determined that there was one type that was doing all the heavy lifting… cruciferous vegetables.

They found that every 10 grams of cruciferous vegetables women ate per day reduced the thickness of their carotid artery wall by 0.8 percent. Since a typical serving of broccoli is about 36 grams, that probably leads to a nice reduction in stroke and heart attack risk.

Additional research in 2020 revisited this data and also found the women who consumed the highest amounts of cruciferous vegetables had less abdominal aortic calcification (an early warning sign of heart trouble) than the women who ate less.

Plenty of Cruciferae to choose from…

Research says the positive effect of cruciferous vegetables may be due to their abundance of vitamin K, including phylloquinone (vitamin K1) found in leafy green vegetables, broccoli and Brussels sprouts and menaquinones (vitamin K2) found primarily in animal-based foods.

Phylloquinone can break down to menadione, an intermediate that is then converted to menaquinone, a form believed to reduce vascular calcification.

Broccoli is probably the best-known member of the Cruciferae family and a well-known superfood. But there are plenty of other cruciferous vegetables to choose from (even a few surprising ones) if you want clear arteries, like:

• Arugula
• Bok choi
• Broccoli
• Broccoli rabe
• Brussel sprouts
• Cabbage
• Cauliflower
• Chinese Broccoli
• Collard Greens
• Horseradish
• Kale
• Radish
• Turnips and turnip greens
• Wasabi
• Rutabaga
• Horseradish

Sources:

1. “Vegetables may help protect elderly women from hardening of neck arteries.”  https://medicalxpress.com/news/2018-04-vegetables-elderly-women-hardening-neck.html. Retrieved April 12, 2018.
2. MedlinePlus. https://medlineplus.gov/atherosclerosis.html. Retrieved April 12, 2018.
3. P. Toth. “Subclinical atherosclerosis: what it is, what it means and what we can do about it.” International Journal of Clinical Practice. 2008 Aug; 62(8): 1246–1254.
4. “Carotid Artery Disease.” MedlinePlus. https://medlineplus.gov/carotidarterydisease.html.Retrieved April 12, 2018.
5. “Cruciferous Vegetables: Cruciferous Definition And The List Of Cruciferous Vegetables.” Gardening Know How. https://www.gardeningknowhow.com/edible/vegetables/vgen/cruciferous-vegetables.htm. Retrieved April 12, 2018.
6. Cruciferous Vegetable Intake Associated with Abdominal Aortic Calcification — Natural Health Research