WHAT HAPPENS TO YOUR BODY WHEN YOU EAT BRUSSELS SPROUTS REGULARLY

Medically reviewed by Roxana Ehsani, RD

Key Takeaways

• The vitamins, minerals, fiber, and antioxidants in Brussels sprouts help manage blood sugar and blood pressure, support gut and heart health, reduce inflammation and cancer risk, and more.
• To enhance the flavor and texture of Brussels sprouts, try steaming, grilling, stir-frying, and roasting this nutritious vegetable.

The benefits of Brussels sprouts include providing a range of nutrients, reducing the risk of diabetes, and promoting digestive health. Knowing how to cook them to bring out their best flavor is the first step to making Brussels sprouts a more regular part of your diet

1. Supports Healthy Blood Sugar Levels

Brussels sprouts are high in fiber, a nutrient that helps stabilize blood sugar. When your body breaks down carbohydrates from food, your blood sugar increases. However, when fiber is present in the foods you consume, digestion slows, helping to prevent such a dramatic spike.

Research shows that regularly eating high-fiber fruits and vegetables is associated with improved blood sugar control and a reduced risk of developing type 2 diabetes.

2. Provides Antioxidants

Brussels sprouts contain antioxidants that help protect cells from compounds called free radicals. You are exposed to free radicals in the environment and as a byproduct of everyday bodily processes.

When free radicals accumulate, they can be harmful, promoting inflammation, cell damage, and disease. Including various antioxidant foods, such as Brussels sprouts, in your regular meal rotation can counteract the damaging effects of free radicals.

3. Improves Gut Health

The fiber in Brussels sprouts helps support your digestive health. While fiber is a critical nutrient in promoting regular bowel movements and a healthy balance of gut bacteria, most people don't get enough.

Surveys have found that only around 5% of American adults meet their minimum daily fiber needs. Adding vegetables like Brussels sprouts is an easy way to boost fiber intake and support your gut.

4. Helps Non-Heme Iron Absorption

Brussels sprouts contain a small amount of iron. However, they provide vitamin C, helping to enhance the bioavailability (absorption ability) of non-heme (plant-derived) iron in your diet, which is more challenging for your body to absorb than heme (animal-derived) iron.

Many fruits and vegetables contain vitamin C, but Brussels sprouts are a particularly rich source.

5. Promotes Normal Blood-Clotting

Brussels sprouts contain vitamin K, an essential nutrient for coagulation (blood clotting). Your body forms blood clots to stop bleeding and repair wounds, such as when you get a cut on your skin.

Your vitamin K intake must be consistent if you use a blood-thinning medication like Jantoven (warfarin). Otherwise, this can interfere with your blood clotting ability. Speak with a healthcare provider if you have concerns about vitamin K foods and blood-thinning medications.

6. Maintains a Healthy Weight

The fiber in Brussels sprouts helps keep you satiated (satisfied) between meals. This can help prevent overeating or mindless snacking that can lead to unintentional weight gain. Incorporating vegetables like Brussels sprouts is a naturally low-calorie way to help fill your stomach and satisfy your appetite.

7. Regulates Blood Pressure

Brussels sprouts provide potassium, a mineral heavily involved in blood pressure regulation. Potassium helps counterbalance sodium in your body, which raises your blood pressure. Balancing these two minerals in your diet is essential to keep blood pressure within normal limits and support heart health.

Brussels sprouts also contain sulfur compounds called glucosinolates, which have been found to help support healthy blood pressure levels. Glucosinolates are phytochemicals (compounds found in plants) almost exclusively found in cruciferous vegetables.

8. Contains Cancer-Fighting Compounds

Brussels sprouts and other cruciferous vegetables contain a compound called sulforaphane. Sulforaphane has been studied for numerous health-promoting effects, including its anticancer activity.

Glucobrassicin is a glucosinolate found in Brussels sprouts, contributing to their bitter taste and cancer-fighting ability. Brussels sprouts contain high levels of glucobrassicin, but overcooking can block this health benefit.

9. Supports Heart Health

Brussels sprouts are rich in fiber, potassium, vitamin K, and antioxidants, all supporting heart health.

• Fiber: Brussels sprouts are a good source of soluble and insoluble fiber. Soluble fiber helps lower LDL ("bad") cholesterol levels by reducing its absorption into the bloodstream.
• Potassium: This mineral is important for maintaining healthy blood pressure, which is a key factor in maintaining a healthy heart.
• Vitamin K: As previously mentioned, Brussels sprouts are rich in vitamin K. Vitamin K is thought to reduce the risk of heart disease by preventing inflammation and calcium build-up in the arteries, contributing to heart disease.
• Kaempferol: An antioxidant found in Brussels sprouts, kaempferol protects the heart by reducing oxidative stress, inflammation, and damage to heart cells and tissues.
• Nitrates: Brussels sprouts contain natural nitrates that the body converts into nitric oxide. Nitric oxide helps relax and widen blood vessels, improving blood flow and pressure.

Nutrient Profile

Brussels sprouts are an excellent source of fiber, antioxidants, such as vitamin K and C, and beneficial plant compounds that help protect cell health and support immune function.

One cup of raw Brussels sprouts provides:

• Calories: 38
• Protein: 3 grams (g)
• Total Fat: 0 g
• Total Carbohydrates: 8 g
• Fiber: 3.5 g
• Calcium: 38 milligrams (mg)
• Iron: 1.3 mg
• Magnesium: 21 mg
• Potassium: 350 mg
• Vitamin C: 76.5 mg
• Vitamin K: 159 micrograms (mcg)
• Folate: 55 mcg

Reasons to Avoid Eating Brussels Sprouts

Some people may experience digestive side effects from eating Brussels sprouts, especially raw, though they're usually not serious. If you have irritable bowel syndrome (IBS), your stomach may be sensitive to the types of carbohydrates in Brussels sprouts.

Brussels sprouts also contain an indigestible fiber called raffinose, which can be hard to digest, especially if you have an existing condition like IBS. When your body tries to break down raffinose, it produces gases like methane, hydrogen, and carbon dioxide, which can result in abdominal discomfort.

Because Brussels sprouts are high in vitamin K, those taking blood thinners (e.g., warfarin) are often advised to eat a consistent amount of Brussels sprouts and other dark green vegetables. 

If you take a blood thinner medication, talk to your healthcare provider about any necessary dietary changes.

How to Make Brussels Sprouts Taste Good

A few ways to cook and present Brussels sprouts that provide unique flavors and textures include:

• Roasted: Brussels sprouts will caramelize while roasting in the oven, which helps bring out flavor and natural sweetness. Serve roasted Brussels sprouts as a side dish, add them to a grain bowl, or slice and layer them on a warm sandwich.
• Steamed: Compared to other preparation methods, steaming Brussels sprouts helps retain more of their polyphenol compounds and sulforaphane. Serve steamed Brussels sprouts alongside mashed potatoes, a warm BBQ sandwich, or a bowl of chili.
• Grilled: Grilled Brussels sprouts are delicious, but to achieve the right texture, they must first be briefly steamed to cook the inside. Serve grilled Brussels sprouts as a side to burgers or hot dogs, sliced on creamy pasta, or as an appetizer.
• Stir-fried: Stir-frying Brussels sprouts requires browning in a dry pan before adding oil to finish cooking. They can be included in any stir-fry dish with other veggies and protein, and they can also be added to salads.

Read the original article on Verywell Health

2025-11-03T20:03:35Z