Broccoli, kale, red cabbage, and Brussels sprouts: nutritional differences
1 min read
💡 Key Takeaways
Broccoli, kale, red cabbage, and Brussels sprouts share a botanical family and glucosinolates, but their profiles are distinct. This article analyzes what differentiates each in terms of dominant glucosinolates, vitamins, and nutritional behavior.
Each cruciferous vegetable has its own glucosinolate profile: glucoraphanin dominates in broccoli; sinigrin, in Brussels sprouts; glucobrassicin, in kale.
Red cabbage stands out for its anthocyanins, pigments with antioxidant properties distinct from glucosinolates.
Kale has more vitamin K per serving than broccoli; broccoli has more glucoraphanin.
Brussels sprouts have the most diverse glucosinolate profile and the most intense flavor.
Varying between these four cruciferous vegetables provides a broader spectrum of compounds than focusing on just one.
The analysis is based on peer-reviewed scientific literature, including Kushad et al. (1999) on glucosinolate variation in Brassica oleracea, and compositional data from USDA FoodData Central (2023).
Table of Contents
Frequently Asked Questions
Is kale better than broccoli?
There's no hierarchy. Kale has more vitamin K and fiber per serving; broccoli has more glucoraphanin. They have complementary profiles. The more useful question is not which is better but how to combine them.
Does red cabbage have the same glucosinolates as broccoli?
It has comparable amounts of glucoraphanin, but its distinguishing characteristic is anthocyanins—absent in green broccoli. The purple color is the visual signal of that biochemical difference.
Are Brussels sprouts more nutritious than broccoli?
They have a more diverse glucosinolate profile and high levels of vitamin C and K, but also more goitrogens per serving. They are not "more nutritious" in general: they are different, with their own advantages and disadvantages.
References & Sources
Kushad MM et al. Variation of glucosinolates in Brassica oleracea. J Agric Food Chem. 1999;47(4):1541–8. https://doi.org/10.1021/jf980985s
Agagündüz D et al. Cruciferous vegetables and their bioactive metabolites. Evid Based Complement Alternat Med. 2022;2022:1534083. https://doi.org/10.1155/2022/1534083
USDA FoodData Central. Données sur la composition nutritionnelle des variétés de Brassica oleracea. 2023.
Written by
Jaad JORIO
Jaad Jorio is the co-founder of Supersentials. An engineer by training, farmer, entrepreneur, professional boat captain, and musician, he writes about microgreens, plant nutrition, sulforaphane, and lyophilization, with a structured approach: understand before asserting, distinguish proven facts from probabilities, and avoid turning a mechanism into a promise.
