Compact bud resembling tiny cabbage. One cup cooked provides 124% DV vitamin K, 81% DV vitamin C, 16% DV folate, 10% DV iron, and significant fiber and potassium. Also provides high levels of glucosinolates → sulforaphane, indole-3-carbinol, and DIM — the cruciferous estrogen-clearing and cancer-preventive compounds.
Available at all grocery stores year-round (peak season fall-winter). Frozen Brussels sprouts are nutritionally comparable and more convenient.
Sulforaphane is the most extensively studied natural cancer-preventive compound. It activates NRF2 — the master regulatory protein that switches on over 200 genes involved in antioxidant defense, detoxification, and anti-inflammatory response. The NRF2 activation from sulforaphane is the most comprehensive cellular protection mechanism available from any food. A 2014 meta-analysis across 24 prospective cohort studies found cruciferous vegetable consumption significantly reduced cancer risk across colon, lung, stomach, and bladder cancer. For fibroids and breast cancer in Black women: the DIM produced from Brussels sprout glucosinolates shifts estrogen metabolism from 16-hydroxyestrone (pro-cancer) to 2-hydroxyestrone (protective) — documented in clinical trials. Alpha-lipoic acid — present in Brussels sprouts — is both a water-soluble and fat-soluble antioxidant that regenerates vitamin C and vitamin E after they neutralize free radicals, amplifying the antioxidant protection of every other food eaten with it.
Roasting is the only acceptable method for palatability: halve, toss in olive oil + salt + pepper + garlic, roast at 425°F 20-25 min until caramelized and crispy on cut side. The Maillard reaction creates the sweetness and eliminates the bitterness. Add lemon juice at the end. The mistake: steaming or boiling (releases sulfur compounds). The solution: high-heat roasting.
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