What is the nutritional value of broccoli

Broccoli has a strong reputation as a “powerhouse” vegetable, and people often ask what is the nutritional value of broccoli and if it truly lives up to the hype. When we look closely, broccoli offers an impressive mix of vitamins, minerals, fiber, antioxidants, and plant compounds that support long term health. For anyone in the United States who cares about weight, blood sugar, heart health, or just feeling better in daily life, broccoli can play a steady role on the plate.

Nutrition at a Glance

The nutritional value of broccoli below is based on 1 cup of chopped raw broccoli (about 91 grams). Values are approximate and can vary slightly by brand, farming methods, and preparation.

*Percent Daily Values are based on a 2,000 calorie diet.

Serving Size Reference

When we talk about the nutritional value of broccoli, it helps to picture what a serving actually looks like. For most adults, a standard serving is:

• 1 cup raw chopped florets, about the size of a baseball
• Or 1/2 cup cooked broccoli

On a dinner plate at home in the US, this often means a small pile that takes up about one quarter of the plate when paired with a protein and a grain or starch. Many people do not realize they can easily double this amount and still stay very low in calories.

Calorie Content

Broccoli is low in calories, with roughly 31 calories per cup raw and around 55 calories per 1 cup cooked (boiled or steamed, drained, no added fat). For people managing weight, this makes broccoli a food where we can eat a generous portion while still staying in a calorie deficit or maintenance range. Because it carries fiber and water, it helps the stomach feel more full compared to other low calorie foods like plain lettuce.

Macronutrient Breakdown

Macronutrients are carbohydrates, proteins, and fats. Even though broccoli is a vegetable, it offers a meaningful mix of these, especially carbs and some protein.

Carbohydrates in Broccoli

One cup of raw broccoli has about 6 grams of total carbohydrates. For comparison, that is far lower than a slice of bread or a cup of cooked rice. A large part of these carbs come from fiber and slowly digested starch. That means broccoli usually has a gentler impact on blood sugar levels, which matters for people worried about prediabetes or diabetes. When someone in clinic switch part of there plate from white rice or mashed potatoes to broccoli, we often see better blood sugar patterns over time.

Fiber Content

Broccoli offers roughly 2.4 grams of fiber per cup raw. This may not sound huge, but it adds up quickly if eaten several times a week.

Fiber in broccoli

• Supports regular bowel movements and softer stool
• Feeds beneficial gut bacteria, supporting a healthier microbiome
• Helps lower LDL “bad” cholesterol when included in a balanced diet
• Promotes satiety, which can help with portion control and snacking

Both soluble and insoluble fibers are present, which together play a role in digestive comfort. Many of my patients who add broccoli gradually notice less constipation but may need to increase intake slowly to avoid gas.

Sugars in Broccoli: Natural vs Added

The natural sugar content in broccoli is very low, about 1.5 grams per cup raw. These are naturally occurring sugars inside the plant structure and come together with fiber, water, and micronutrients. There is no added sugar in plain fresh or frozen broccoli. Even when cooked, unless syrup, sauces, or glazes are added, the sugar remains naturally low and usually does not cause a noticeable spike in blood sugar for most people.

Protein Content

One cup of raw broccoli delivers about 2.5 grams of protein. While this will not replace a full serving of chicken or fish, it still contributes to overall daily protein intake. For people eating plant focused or plant based diets, stacking several vegetable servings, beans, whole grains, and seeds through the day helps reach a solid total. Broccoli protein also comes with beneficial amino acids, though not in the same high concentration as animal foods or soy.

Fat Content

Broccoli is naturally very low in fat, with only about 0.3 grams per cup raw. This tiny amount comes mainly from unsaturated fats in the plant structure. That is one reason broccoli is common in diet plans for heart health, weight management, and low fat menus.

Saturated Fat

Saturated fat in broccoli is minimal, around 0.1 grams per cup. When someone swaps a higher fat side dish like creamy macaroni or fries for broccoli, they lower saturated fat quite a bit without feeling deprived if the broccoli is seasoned well.

Trans Fat

Natural broccoli contains 0 grams of trans fat. Any trans fat would only appear if broccoli is fried in oils that contain trans fats, which is rare now in many American kitchens but can still happen in some fast food or older processed products.

Vitamins in Broccoli

What is the nutritional value of broccoli when we look at vitamins alone? Honestly, this is where broccoli really shines.

Key vitamins in 1 cup raw broccoli include

• Vitamin C: About 81 mg, close to a full day’s needs for most adults. Supports immune function, collagen formation, skin health, and acts as a strong antioxidant.
• Vitamin K: Around 92 mcg, providing more than half of the daily requirement. Vitamin K is crucial for proper blood clotting and bone metabolism.
• Vitamin A (beta carotene): Contributes to eye health, skin integrity, and immune defense.
• Folate (Vitamin B9): Around 57 mcg per cup. Important for cell repair, red blood cell production, and especially important for pregnant women to support fetal development.
• B vitamins: Small amounts of B2 (riboflavin), B6, and others, which support energy metabolism and nervous system function.

We also find compounds like lutein and zeaxanthin that help protect the eyes from oxidative damage from light. These do not appear on most standard labels, but they matter, especially for eye health later in life.

Minerals in Broccoli

On the mineral side, broccoli delivers a steady dose of several essentials

• Potassium: Around 288 mg per cup. Potassium helps regulate blood pressure and fluid balance. Many US adults do not reach recommended potassium levels, and vegetables like broccoli help close that gap.
• Calcium: Roughly 43 mg per cup. While this does not replace dairy, it still contributes to daily intake, especially for those who avoid milk.
• Iron: About 0.7 mg, useful for red blood cell production, especially when combined with vitamin C in broccoli which improves iron absorption.
• Magnesium: Around 19 mg, supporting muscle function, nerve signaling, and glucose control.
• Phosphorus and zinc: Present in smaller amounts, still meaningful as part of a varied eating pattern.

Sodium Content

Plain raw broccoli is naturally low in sodium at about 30 mg per cup. Even cooked without salt, it stays low. The sodium load only rises when we add salt, cheese sauces, soy sauce, or salty seasonings. Many people are surprised how quickly the sodium climbs when broccoli is part of a frozen dinner, canned soup, or restaurant entree, so checking the label or asking how it is prepared can help.

Cholesterol Content

Broccoli contains 0 mg cholesterol. Cholesterol is only found in animal foods, so plant foods like broccoli are cholesterol free. This makes broccoli a smart side for anyone with high LDL levels or a family history of heart disease.

Glycemic Impact and Blood Sugar

Because broccoli is low in total carbohydrate, has fiber, and contains little natural sugar, its glycemic index is low. It tends to have a gentle effect on blood sugar. When paired with higher carb foods such as rice, pasta, or potatoes, broccoli helps slow digestion of the mixed meal. Many of my patients with type 2 diabetes notice more stable readings when half the plate is non starchy vegetables like broccoli, green beans, or leafy greens.

Digestive Considerations

Broccoli supports digestive health through fiber and phytochemicals, but it can cause gas or bloating for some people. Broccoli contains certain carbohydrates (FODMAPs) that may be poorly tolerated in conditions like irritable bowel syndrome. For those people, smaller portions, well cooked broccoli, or choosing just the tender florets instead of thick stalks may feel more comfortable. Drinking more water and chewing slowly also reduce discomfort. The body often adapts when fiber rich foods are added slowly over a few weeks.

Allergen Information

Broccoli is not a major allergen in the way that nuts, dairy, or shellfish are. True broccoli allergy is rare. However, some individuals with allergies to other cruciferous vegetables, such as cabbage or Brussels sprouts, may also react to broccoli. Symptoms can range from mild oral itching to more serious reactions in sensitive people. If someone experience unusual swelling, hives, or breathing issues after eating broccoli, they should seek medical care quickly.

Antinutrients and Absorption Notes

Broccoli contains natural compounds such as goitrogens and phytates. Goitrogens may interfere slightly with iodine uptake in the thyroid when consumed in very high amounts, especially in raw form. For most people, moderate broccoli intake is not an issue. Cooking lightly often reduces these compounds while keeping most nutrients. Phytates in broccoli can bind some minerals, but again, in a varied diet this usually has little practical effect.

Health Considerations Linked to Broccoli

When we ask what is the nutritional value of broccoli in real life, we also mean what it may do for our health over many years.

Research connects regular broccoli intake with

• Better blood pressure control thanks to potassium, fiber, and antioxidants
• Support for immune function through high vitamin C and other phytonutrients
• Reduced oxidative stress and inflammation through compounds like sulforaphane and glucosinolates
• Improved digestion and bowel regularity from fiber and water content
• Stronger bone support from vitamin K, calcium, and magnesium

Of course, broccoli alone will not cure disease, but as part of a steady pattern that includes fruits, other vegetables, whole grains, lean proteins, and healthy fats, it plays a powerful supporting role.

Potential Benefits of Regular Broccoli Intake

Some of the most meaningful potential benefits include

• Weight management: Low calorie and high fiber, which often leads to lower total calorie intake over the day when broccoli replaces energy dense sides.
• Heart health: Helps lower LDL cholesterol, supports blood vessel function, and offers potassium to counteract sodium.
• Cancer protective compounds: Sulforaphane and related substances support the body’s natural detox enzymes and may protect cells from DNA damage.
• Eye and skin health: Beta carotene, lutein, zeaxanthin, and vitamin C work together as antioxidants for eyes and skin.
• Blood sugar control: Low glycemic impact and fiber makes it helpful for people watching glucose level swings.

Potential Concerns or Limitations

For most healthy adults, broccoli is quite safe, but there are a few points to think about

• People with IBS or sensitive digestion may need to limit portion size or cook broccoli more.
• Those with thyroid conditions who eat very large amounts of raw cruciferous vegetables daily should discuss intake with their healthcare provider, especially when iodine intake is low.
• Vitamin K in broccoli can interfere with blood thinning medications like warfarin. Sudden big changes in broccoli intake can change clotting status. Consistency is key, and medication adjustments may be needed under medical guidance.

Portion Size Guidance

For most adults aiming for better health, a helpful target is

• 1 to 2 cups of broccoli per day, or
• Broccoli 3 to 5 times per week in meals and snacks

This can be part of the general goal of at least 2 to 3 cups of vegetables a day. Larger portions can be fine for many people, especially when trying to cut back on refined starches or fried foods.

Frequency of Consumption

Broccoli can be eaten daily as part of a balanced pattern. Rotating with other vegetables such as spinach, carrots, peppers, and squash brings a wider nutrient range. For people using blood thinners, keeping broccoli intake consistent from week to week is more important than the exact number of servings.

Raw vs Cooked Broccoli

Raw and cooked broccoli both have strong nutritional value, but they differ slightly.

Raw broccoli

• Higher vitamin C content, since vitamin C is heat sensitive
• More crisp texture, which some people enjoy for salads and snacking
• Can be harder to digest for sensitive stomachs

Cooked broccoli (steamed, microwaved, or lightly stir fried)

• Often easier to digest
• Can increase availability of some antioxidants like certain carotenoids
• Boiling for long time can cause some vitamins, especially vitamin C and B vitamins, to leach into water

From a practical standpoint, a mix of raw and gently cooked broccoli across the week gives a good balance.

Fresh vs Frozen vs Canned Broccoli

Fresh broccoli is common in US grocery stores, but frozen broccoli is often just as nutritious and sometimes even higher in some vitamins because it is frozen shortly after harvest. Frozen broccoli without sauces or salt is an excellent choice for quick meals.

Canned broccoli is less common and often softer with some nutrient loss. When sauces, cheese, or salty brines are added, sodium and calories go up quickly. For most people focused on health and weight, fresh or plain frozen broccoli is the more useful option.

Cultural and Traditional Uses

Broccoli shows up in many American style dishes, from simple steamed sides at family dinners to broccoli cheddar soup, stir fries, casseroles, and pasta dishes. In East Asian cooking, broccoli or similar vegetables like Chinese broccoli are often stir fried with garlic, ginger, and a light sauce. In Italian American homes, it might be sautéed with olive oil, chili flakes, and garlic and served over whole grain pasta. Each style brings slightly different nutrition depending on added fats, salt, and cheese.

How Broccoli Fits Into a Balanced Diet

When we step back and look at the overall nutritional value of broccoli, we see a low calorie, fiber rich, vitamin packed vegetable that fits well into most eating styles, including Mediterranean, DASH, plant based, and standard American diets that are shifting toward more whole foods. Broccoli works as

• A side dish next to fish, chicken, or tofu
• A base in stir fries with lean protein and brown rice
• An addition to omelets, frittatas, or breakfast scrambles
• A snack when paired with hummus or yogurt dip

Pairing Suggestions

To get the most from broccoli, pair it with

• Healthy fats like olive oil, avocado, or nuts, which can help absorb fat soluble vitamins A and K.
• Vitamin C rich foods (even though broccoli already has some) like lemon, bell peppers, or oranges when using other iron rich plant foods.
• Lean proteins such as grilled chicken, beans, tempeh, eggs, or salmon for more filling meals.

A simple example would be roasted broccoli with olive oil, garlic, and a squeeze of lemon, served beside baked salmon and quinoa. That one plate supports heart health, muscle repair, and blood sugar balance.

Storage and Shelf Life

Fresh broccoli stays best when kept dry in the refrigerator, usually in the crisper drawer, for about 3 to 5 days. Too much moisture causes it to spoil quicker, with yellowing florets and limp stems. Frozen broccoli can last several months in the freezer if sealed well. Leftover cooked broccoli should be stored in an airtight container and used within 3 to 4 days for safety and taste.

Comparison With Similar Vegetables

Compared with other cruciferous vegetables like cauliflower, Brussels sprouts, and cabbage, broccoli offers

• Similar fiber levels
• Very high vitamin C and vitamin K
• A strong content of sulforaphane precursors

Cauliflower is slightly lower in vitamin C and has different antioxidant patterns. Brussels sprouts have comparable vitamin K and fiber, but a somewhat stronger flavor and may cause more gas in some people. Rotating all of them gives a broader mix of beneficial compounds.

Frequently Asked Questions

Is broccoli a good source of protein for vegans?

Broccoli alone is not enough to meet full protein needs, but it contributes. When combined with beans, lentils, tofu, whole grains, nuts, and seeds through the day, it fits well in a vegan or vegetarian pattern.

Does cooking destroy all the nutrients in broccoli?

Cooking changes the nutrient profile but does not wipe it out. Some vitamin C and B vitamins are lost with high heat or boiling in lots of water, but other compounds may become more available. Steaming, microwaving with little water, or quick stir frying are usually better choices.

Can people with diabetes eat broccoli freely?

Most people with diabetes can eat broccoli in generous portions because it has low carbohydrates and low glycemic impact. Of course, the overall meal matters; heavy cheese sauces or sugary glazes change the picture.

Is broccoli keto friendly?

Yes, broccoli is common in ketogenic and lower carb plans because it has relatively few net carbs (total carbs minus fiber) per serving.

Nutrition Data Source Note

The nutrient values in this article are based mainly on standard references such as the United States Department of Agriculture nutrient database and typical laboratory analysis of raw and cooked broccoli. Individual brands, cooking methods, and recipes can change the exact values slightly.

Last Updated

Updated for nutritional and practical guidance as of March 2026 to reflect current knowledge about the nutritional value of broccoli and how it fits into everyday eating patterns.