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Broccoli benefits: Health effects of cruciferous vegetables

Broccoli, cabbage and cauliflower are among the well-known

Broccoli, cabbage and cauliflower are among the well-known cruciferous vegetables. Credit: Getty Images/iStockphoto / Karaidel

All veggies are good for you, but cruciferous vegetables are in a special category. This group of vegetables is rich in disease-preventing nutrients, including vitamins C, E and K, folate, minerals and several carotenoids. Broccoli, cabbage, cauliflower and Brussels sprouts are well-known examples of cruciferous vegetables. This class of vegetables also includes arugula, bok choy, broccoli sprouts, collard greens, horseradish, kale, kohlrabi, radishes, rutabagas, turnips, watercress and wasabi. The 2015-2020 Dietary Guidelines for Americans recommend that adults consume 1 1⁄2 to 2 1⁄2 cups of dark-green vegetables a week, including cruciferous vegetables.

Health benefits galore

These intensely flavored vegetables are unique sources of glucosinolates, a large group of sulfur-containing compounds associated with health benefits. Glucosinolates are broken down to form compounds that are shown to trigger the death of tumor cells, both in the lab and in animals. High intake of cruciferous vegetables has been associated with a lower risk of developing cancers of the bladder, breast, colon, endometrium, stomach, lungs, ovaries, pancreas, prostate and kidneys.

There is also evidence to suggest that cruciferous vegetables may reduce the risk of cardiovascular disease. One study found that those with the highest intake of cruciferous vegetables (six times per week) had a 27 percent lower risk of having a heart attack, compared to those who ate cruciferous vegetables only once a week. Another study found that eating about 2 1⁄2 stalks a week of high-glucosinolate broccoli resulted in a significant reduction in blood levels of low-density lipoprotein (LDLs). Elevated LDLs are a proven risk factor for cardiovascular disease.

Cooking with cruciferous

The amount of glucosinates broken down into disease-fighting compounds depends, in part, on how produce is prepared. Chopping or chewing raw cruciferous vegetables allows enzymes in the food to break down glucosinolates. While all cooking methods reduce these compounds, steaming, microwaving and stir-frying result in less losses than boiling.

Learning to love cruciferous

You either love ’em or hate ’em. Research shows that whether they make your mouth water or your lips curl in disgust may depend on your genes. About 25 percent of the population is genetically sensitive to bitter tastes, like those in cruciferous vegetables, and the strong perception of bitterness overwhelms their natural sweetness. Regardless of where you fall on the cruciferous love-hate scale, here are tips for making them enjoyable.

  • Roast them. This caramelizes cruciferous vegetables, bringing out the sweetness to tame the bitter.
  • Add a bit of salt. Cut the intensity of the bitterness, for those who are sensitive to it, with salt.
  • Sprinkle in some sweetness. Think a touch of honey with roasted Brussels sprouts. One study found that even the artificial sweetener aspartame has a powerful ability to mask the bitter flavor of cruciferous.
  • Puree them. Try blending seasoned cauliflower into a healthy, creamy sauce.

(Reprinted with permission from Environmental Nutrition, a monthly publication of Belvoir Media Group, LLC. 800-829-5384. www.EnvironmentalNutrition.com.)

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(c) 2018 BELVOIR MEDIA GROUP. DISTRIBUTED BY TRIBUNE CONTENT AGENCY, LLC.

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