What Makes Broccoli and Kale Superfoods?

What Makes Broccoli and Kale Superfoods?

One of the first things I do with my Nutrition clients is to talk about adding in more GOOD for you foods. So don’t skip over this blog if you don’t like veggies. Give it a read and see if I can convince you to include just a few more greens in your day.

Broccoli and kale are often touted to be “superfoods.” And, yes, they really are amazingly healthy for you.

If you’re wondering what exactly is in these green powerhouses that makes them so “super,” I’ve dived into the research to give you some nerdy reasons to make these a staple in your diet.

To start, they're both considered cruciferous vegetables related to each other in the Brassica family. This family of super plants also includes cauliflower, cabbage, mustard greens, and Brussels sprouts.

These superfoods have a tonne of nutrition, and other health-promoting compounds, they're relatively inexpensive and easy to cook too!

Super nutrition

Broccoli and kale are full of nutrition: vitamins, minerals, fibre, etc. They're both considered to be nutrient dense which is a measure of nutrients per calorie - and these both have a lot!

100 grams of broccoli (about 1 cup, chopped) contains:

  • 34 calories

  • 2.8 g protein, 0.4 g fat, 6.6 g carbohydrates, and 2.6 g fibre.

  • Good source of B vitamins (when eaten raw)

  • >100% of your daily vitamin C

  • Almost 100% of your vitamin K

  • Good source of manganese

  • Traces of all the other vitamins and minerals

One cup of loosely packed kale contains:

  • 8 calories

  • 0.7 g protein, 0.2 g fat (including omega-3), 1.4 g carbohydrates, and 0.6 g fibre.

  • Contains pre-vitamin A (beta-carotene).

  • Several B vitamins, including B1, B3, B5, B6, and folate (B9)

  • Rich in vitamins C and K

  • Lots of minerals including manganese, magnesium, iron, potassium, sulfur, copper, phosphorus, and calcium

As you can see, these two foods contain a lot of nutrients.

NOTE: Too much vitamin K may interact with certain blood-thinning medications. If you're taking one of these medications, talk to your doctor or pharmacist before incorporating too much of these superfoods into your diet. 

Broccoli and kale also contain other health-promoting compounds. 

Super health-promoting compounds

Broccoli and kale tend to taste a bit bitter - but that bitterness equals healthfulness!

This bitter flavour is from some of the health-promoting compounds in these super plant foods. Things like glucosinolates (e.g., sulforaphane and isothiocyanates) and polyphenol flavonols.

There are a few different types of kale - from curly kale, to dinosaur kale, to red/purple kale. The different colours result from slight differences in the amounts of the compounds these plants contain.

One of the main active ingredients in cruciferous vegetables are glucosinolates. These antioxidant compounds are very useful to help detoxify and protect against cancer.

FUN FACT: It's the precursors to glucosinolates that are in cruciferous vegetables, not the compounds themselves. When fresh broccoli and kale are eaten (or even chopped/blended) raw the active compounds are produced. *This fact is incorporated into a trick I use in this week’s recipe*

NOTE: Glucosinolates may affect iodine absorption and thyroid health, particularly in people prone to thyroid disease. In this case, you may not have to ditch these superfoods altogether - just cook them first.

These superfoods also contain flavonols like kaempferol and quercetin. Flavonols have antioxidant and anti-inflammatory properties, and they decrease your risk of cancer.

Kale also contains carotenoids like lutein and zeaxanthin. Carotenoids are known for promoting eye health and are protective against many cancers.

When cooked, kale contains another anti-cancer compound called indole.

Conclusion

Broccoli and kale are cruciferous superfoods. They are packed with nutrition and have a whole array of health-promoting compounds.  

Almost everyone should be eating these regularly. Just be cautious if you're taking blood-thinning medications; and, if you have thyroid issues, cook them first.

Do you, or anyone you know, absolutely love (or hate) these superfoods? Do you have a favourite recipe to share? Let me know in the comments below.

And want a yummy recipe to try them both? Check out my soup recipe below.

Related Reading:

Broccoli and Kale Superfood Soup

10 Superfoods You Should Be Eating

Baked Kale Chips Recipe


Want to clean up your diet and get started on a healthier eating program? Grab my FREE 7 Day Clean Eating Meal Plan below:

That’s it for today- see you again next week!

Gaylene Gomez, NNCP, C.H.N.

A little bit about me! I'm Gaylene, a Holistic Nutrition Coach for women. I work with busy, professional women to help them learn about healthy, simple lifestyle changes they can easily implement to reduce belly bloat, lose weight and get through their day with sustained energy. My clients are committed to their health and excited to learn about healthy eating and natural living. I feel proud of them for taking charge of their health and I'm so lucky to work with these amazing women. 

Learn more about me here: About Me



References:

https://www.thepaleomom.com/wiki/broccoli/

https://ndb.nal.usda.gov/ndb/foods/show/2871?manu=&fgcd=&ds=

https://www.thepaleomom.com/wiki/kale/

https://www.precisionnutrition.com/encyclopedia/food/kale

https://www.thepaleomom.com/kale-superfood-and-delicious-too/

https://nutritionfacts.org/video/the-broccoli-receptor-our-first-line-of-defense-2/

https://nutritionfacts.org/video/second-strategy-to-cooking-broccoli/

https://www.healthline.com/health/food-nutrition/crucifeous-vegetables#1

https://www.healthline.com/nutrition/foods/broccoli#section1

https://www.healthline.com/nutrition/10-proven-benefits-of-kale

https://en.wikipedia.org/wiki/List_of_phytochemicals_in_food#Polyphenols

https://en.wikipedia.org/wiki/Carotenoid#Properties

https://en.wikipedia.org/wiki/Glucosinolate#Humans_and_other_mammals