Cruciferous Vegetables: A Nutritional Shield Against Disease

Feeling indifferent, I added the giant bag of Costco broccoli to my cart. At least some roasted broccoli would do for a green side with dinner. The next day, I realized I had a challenge to face: the remaining three pounds. I decided to finish off the bag by making everything from crunchy raw salads to savory steamed and sautéed dishes. Surprisingly, the variety kept it fresh, and we finished the entire bag with our appetites for broccoli still intact.

Broccoli comes from the cruciferous vegetable family, right in line with kale, collards, cabbage, and cauliflower. These vegetables have a variety of health benefits and are often placed in the “superfoods” category for their nutrients that actively fight disease.

Sulforaphane likely earns these foods their “powerhouse” acclaim. This antioxidant and anti-inflammatory compound is activated when these vegetables are chewed, chopped, or crushed. It has been shown to reduce the risk of cancers such as breast, prostate, colorectal, and lung cancer. It does this by inhibiting tumor growth, inducing cancer cell death (apoptosis), and preventing cancer stem cell renewal. It is important to note that while research shows these compounds have incredible benefits for cancer prevention and support, they should not replace conventional medical care or treatment for cancer patients. 

Cruciferous vegetables can also improve heart health by reducing cardiovascular disease mortality. Eating these regularly has been shown to decrease blood pressure and lower LDL (bad) cholesterol while raising HDL (good) cholesterol levels. But their benefits don’t stop with heart health. Cruciferous vegetables can also aid in detoxification by supporting the liver’s ability to remove toxins. 

For gut health, cruciferous vegetables are great sources of both soluble and insoluble fiber, which act as prebiotics. Prebiotics—“pre” meaning before because they come first—are essentially food for the gut microbiome. They help support the microbial diversity found in the gut, which is linked to many health benefits. Soluble fiber forms a gel as it moves through the digestive system, and as mentioned above with cholesterol, this same property helps lower LDL (bad) cholesterol. The anti-inflammatory compounds in these vegetables also help keep the gut healthy by decreasing inflammation. 

For weight and diabetes management, these vegetables are low in calories and carbohydrates while being high in fiber. They are also excellent sources of vitamins C, E, and K. Discovering ways to use these vegetables on half your plate can keep you feeling full and satisfied with fewer calories.

The best way to eat cruciferous vegetables for increased sulforaphane content is to chop broccoli or kale and let it rest for thirty to forty minutes. This allows the enzymes time to create sulforaphane. Broccoli sprouts happen to contain the highest concentration of sulforaphane. These sprouts are excellent on any salad, but paired with a cruciferous tossed salad, they can really boost your intake.

The sulfur in these vegetables can give off a pungent odor. To address this, prepare them raw, roasted (think Brussels sprouts here), quick-steamed, or sautéed. The bitter taste can also be balanced by adding an acid. Some lemon or balsamic vinegar works well. 

While increasing vegetables in the diet is a great idea, keep in mind that the added fiber may come with some initial GI discomfort. To help relieve these symptoms, drink adequate water daily and go slowly at first. As with gardening, vegetables begin to come on gradually before large harvests appear. When introducing new vegetables, follow Mother Nature’s example: slowly but consistently at first, then increasing as your GI system adapts. 

I hope you feel encouraged to search out some ways to begin eating more cruciferous vegetables. If it’s worth the risk, a fridge full of three pounds might just lead to some creative dishes for dinner.