Health Benefits of Broccoli

Evidence Based Research Based
Medically reviewed by - Dr. Tez Pratap Singh, MD Written by - Dr. Shaheen Shah


What is Broccoli?

Broccoli (Brassica oleracea) is a green vegetable belonging to the Brassicaceae (cabbage family). Its leaves, flowering head, and stalks are eaten as vegetables. Broccoli has a dark green flower head arranged in a tree-like structure emerging from a light green thick stalk.

Broccoli looks similar to cabbage in appearance. The plant parts growing above the ground are used in making medicines. Broccoli is eaten as a vegetable throughout the world.

Broccoli (Brassica oleracea) is a green vegetable belonging to the Brassicaceae (cabbage family). Its leaves, flowering head, and stalks are eaten as vegetables.

Facts of Broccoli

  • Broccoli is believed as a superfood as it is low in calories with many beneficial nutrients.
  • Broccoli is indigenous to Asia and the Mediterranean region
  • Broccoli is a cold weather crop that grows best at temperatures ranging from 18 to 23-degree centigrade
  • One can only harvest broccoli with hands, and it cannot be machine harvested
  • In California, United States, Broccoli is cultivated throughout the year 1Overview| Researched based study from


Nutrition in Broccoli

Raw broccoli contains 90% water and only 10% other nutrients.

The nutrients present in 90 grams of raw broccoli are as follows

  • Calories-35
  • Carbohydrate-5.6 gm (gram)
  • Protein-2.3 gm
  • Fiber-2.2 gm
  • Fat- 0.3 gm
  • Vitamin B9(Folate)- 15% of DV (daily value)
  • Vitamin K-77% of DV
  • Vitamin C-91% of DV

Besides these, it also contains fibers and a small amount of iron, calcium, magnesium, and potassium.

Carbohydrate and fiber has the following function in our body


  • It provides energy to all cells of the body
  • It also helps in breaking down protein molecules


  • It helps absorb water and speed up the movement of stool in the intestine
  • It prevents constipation and improves the gut health

Vitamins and minerals in broccoli

Vitamin B9 (Folate)

  • It is needed for the synthesis of white and red blood cells
  • It helps in normal tissue growth and cell functioning

Vitamin K1

  • It is for the healing (blood clotting) process in our body
  • It maintains the bone health

Vitamin C

  • It is indispensable for the growth and repair of the tissues
  • It is important for healthy skin and bones


  • It helps bodily processes to function properly
  • It helps strengthen the bones


  • It helps in the transport of oxygen from the lungs to the tissues
  • It is required for growth and development


  • It is vital for proper nerve and muscle functioning
  • It is essential for regulating the blood pressure in our body 2Nutrition| Researched based study from

Bioactive compounds in broccoli


  • Carotenoids are natural pigments present in the plants
  • Broccoli contains carotenoids viz; beta-carotene, zeaxanthin, and lutein
  • It helps in maintaining the eye health


  • It is a natural compound found in vegetables
  • It might help prevent the abnormal cell growth


  • It is a natural compound in vegetables and is most abundant in broccoli
  • It nullifies the free radicals in our body and helps prevent cell damage


  • It is a natural pigment present in plants
  • It reduces pain and swelling
  • It prevents cell damage and regulates blood pressure


  • It is a naturally occurring polyphenol compound present in plants
  • It nullifies the free radicals in the body and prevents cell damage
  • It inhibits the abnormal cell growth 3Nutrition| Researched based study from

Health Benefits

Health benefits of Broccoli.

Health Benefits of Broccoli

The health benefits of broccoli are as follows

  • Lowers blood cholesterol
  • Improves eye health
  • Fights cancer
  • Helps diabetes
  • Improves the heart health
  • Improves digestion
  • Enhances brain health
  • Supports oral health
  • Strengthen the bones
  • Enhances the skin health

Lowers blood cholesterol

  • Substances in broccoli bind with bile acids and increase their excretion, which results in new bile acid synthesis from the cholesterol. Hence, it decreases the total cholesterol in our body.
  • It reduces the risk of chronic diseases 4Health benefits| Researched based study from

Improves eye health

  • Nutrients in broccoli decrease the risk of age-related macular degeneration.
  • It decreases the risk of night blindness. Night blindness is when a person has vision problems in dim light 5Health benefits| Researched based study from

Fights cancer

  • Sulforaphane in broccoli reduces oxidative stress and inhibits abnormal cell growth.
  • It reduces the risk of stomach, lung, breast, and prostate cancer 6Health benefits| Researched based study from

Helps diabetes

  • Broccoli decreases insulin resistance in type 2 diabetes
  • It regulates the blood sugar 7Health benefits| Researched based study from

Improves the heart health

  • Broccoli supplements decrease the bad cholesterol (low-density lipoprotein) in the body.
  • It reduces the risk of heart diseases 8Health benefits| Researched based study from

Improves digestion

  • Nutrients in broccoli promote the growth of beneficial bacteria in the gut
  • It decreases constipation and supports bowel regularity 9Health benefits| Researched based study from

Enhances brain health

  • Bio-actives in broccoli decrease the memory loss
  • It improves the mental ability and thinking processes 10Health benefits| Researched based study from

Supports oral health

  • Nutrients in broccoli reduce the risk of oral cancers
  • It reduces the risk of dental diseases 11Health benefits| Researched based study from

Strengthen the bones

  • Nutrients in broccoli lessen the risk of joint disorders
  • It reduces the risk of osteoarthritis 12Health benefits| Researched based study from

Enhances the skin health

  • Bio-actives in broccoli protect the skin from the ultraviolet radiation of the sun.
  • It reduces the risk of skin cancer 13Health benefits| Researched based study from

However, more research is warranted to prove the effect of broccoli on skin health.

Side effects

Side effects of Broccoli

Most people can well tolerate broccoli. However, some people might experience the following:

  • Itching
  • Hives
  • Swelling in the lips, face, tongue, and mouth
  • Difficult breathing
  • Also, overeating broccoli might lead to excess stomach gas and flatulence.
  • Broccoli contains goitrogens. Goitrogens are substances that impact thyroid function if consumed in huge quantities. But cooking broccoli is known to destroy the enzyme that activates the goitrogens. Hence, one should consume raw broccoli in moderation to avoid unwanted side effects 14Side effects| Researched based study from

who should consume broccoli in moderation

  • People with thyroid problems
  • People with gas problem
  • People on blood thinning medication
  • People allergic to substances in broccoli or other cruciferous vegetables 15Side effects| Researched based study from


Precautions to be taken when having Broccoli

  • Broccoli is generally safe when consumed in food amounts. However, more data is required to determine if broccoli is safe when consumed in large amounts as medicine.
  • Nursing mothers and pregnant women must avoid consuming broccoli in large amounts as medicines due to inadequate information on the safety and efficiency of these groups.


Tips for incorporating Broccoli into the diet

  • One can add broccoli to other vegetables and take it with rice meals
  • One can chop thin broccoli pieces into their pasta dish
  • One can chop boiled broccoli into soups to enhance the taste
  • One can also blend broccoli with smoothies
  • One can steam or bake the broccoli, sprinkle it with pepper and salt, and have it as a side dish.
  • One can also add steamed or raw broccoli to salads and enhance the taste
  • Adding broccoli, beans, peas, and carrots to fried rice makes it even healthier 16Tips| Researched based study from


Interactions of Broccoli


  • Warfarin is an anticoagulant (blood-thinning medication)
  • Broccoli contains vitamin K, which helps in blood clotting
  • Taking broccoli and warfarin together might increase the risk of blood clotting and decrease the efficiency of the drug

Medication broken down by the liver

  • Taking broccoli and medication changed by the liver, such as cytochrome P450 1A2 and cytochrome P450 2A6, might alter the drug-breaking time by the liver.
  • It might decrease the drug’s effect and increase its side effect 17Interactions| Researched based study from


Selection & Storage of Broccoli

  • One should select broccolis that are dark green and firm to touch and avoid pieces that are yellow or wilting.


  • One must store broccoli unwashed in loose perforated bags in the refrigerator.
  • One must avoid washing before storing as excess moisture might encourage molds to grow.
  • One must wash the broccolis only before cooking
  • One must consume the stored broccoli within 3 to 5 days


Key takeaways

  • Broccoli is a nutrient-enriched vegetable with multiple health benefits
  • It also contains a considerable amount of fiber good for the gut health
  • Broccoli is simple to prepare and can be consumed in both raw and cooked form .
  • It can be an excellent addition to a healthy balanced diet
Disclaimer: The user acknowledges that this article's information is being offered for informational purposes only. Every attempt has been made to guarantee that the article is informational and correct. If they have any doubts or questions about their health, we firmly advise our readers to visit a doctor or other healthcare professional.

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