Broccolini: What It Is, Broccolini vs Broccoli, How to Cook It

Broccolini is a cross between broccoli and Chinese kale, the vegetable also called gai lan, with long slender stems, small florets and a few leaves. It tastes milder and slightly sweeter than broccoli, and the whole stalk is tender enough to eat without peeling. One fact surprises many shoppers: the USDA SR Legacy database, the standard reference behind most nutrition tables, has no broccolini entry, so this guide gives no broccolini nutrient numbers it cannot source. Instead it shows the USDA values for its two parent vegetables, clearly labeled, and explains how broccolini compares with broccoli, how to cook it, and why people taking warfarin are told to keep their vitamin K intake consistent.

Peptide Labs does not sell broccolini or broccolini products. This article is general nutrition information, not medical advice.

What is broccolini?

Broccolini is sometimes sold as baby broccoli, but it is not an immature broccoli plant. A 2019 study in the journal Foods describes it as a hybrid between conventional broccoli (Brassica oleracea var. italica) and Chinese kale (B. oleracea var. alboglabra), and counts it among the trending brassica vegetables that have become a popular alternative to other members of the family.

Chinese kale, the second parent, is better known in markets as gai lan. It has thick stems, broad leaves and small flower buds, and USDA SR Legacy lists it as Chinese broccoli, noting the names gai-lan and kai-lan. Because both parents belong to the same species, broccolini is a close relative of broccoli, kale, cabbage and cauliflower.

It is a different plant from broccoli rabe, which despite its name is Brassica rapa, a relative of turnips with a far more bitter, leafy character.

Broccolini vs broccoli

The two look and cook differently, even though broccoli is one of broccolini’s parents.

For broccoli’s full nutrition profile, including how raw and cooked broccoli differ, see our broccoli guide.

Broccolini nutrition: what USDA does and does not list

USDA SR Legacy has no broccolini entry; a search of the database for broccolini returns nothing. So this guide does not quote broccolini calories, fiber or vitamin numbers. The table shows the nearest USDA entries, its two parent vegetables, per 100 g. None of these rows describes broccolini itself.

What the parents share: both supply meaningful vitamin K and folate and are low in calories in USDA data. They also differ. Per 100 g raw, broccoli has about three times the vitamin C of gai lan, while gai lan has about twice the calcium. Where broccolini falls between them has not been reported in SR Legacy, so read any precise broccolini figures online with care and check where they come from. Our vitamin C foods guide lists other vegetables with documented values.

Glucosinolates and cooking broccolini

Like other cruciferous vegetables, broccolini contains glucosinolates, the sulfur compounds that an NIH fact sheet says give the cabbage family its pungent aroma and bitter flavor. In the 2019 Foods study, researchers in Spain bought fresh broccolini and kale at a local market and measured glucosinolates before and after cooking. Broccolini’s main glucosinolate was glucoraphanin, the precursor of sulforaphane. Boiling left only about 14 percent of the total glucosinolates, while steaming kept about half and stir-frying about 40 percent, and the authors concluded that steaming and stir-frying generally preserved more than boiling.

These are lab measurements of composition, not evidence of any health effect in people. A small trial in broccoli, covered in our broccoli guide, similarly found more sulforaphane was absorbed from raw than from cooked broccoli. If you would like to keep more of these compounds, quick steaming or stir-frying instead of long boiling fits what the broccolini study measured.

How to cook broccolini

• Trim: cut off the dry ends and split any thick stems lengthwise so everything cooks evenly. The stems, leaves and florets are all edible.
• Steam: steam until the stems are bright green and just tender when pierced with a knife.
• Sauté: cook in olive oil with garlic, add a splash of water and cover the pan briefly to finish the stems.
• Roast or grill: toss with oil and salt and cook in a hot oven or on a grill until the florets char at the tips.
• Store: refrigerate it unwashed in a loosely closed bag and wash it just before cooking.

Broccolini works almost anywhere broccoli does: in stir-fries, grain bowls, pasta or as a side with lemon and garlic. Because the stalks are slim, they cook in roughly the time broccoli florets take, with no separate step for the stems.

Blood thinners and steady vitamin K intake

Both parent vegetables are rich in vitamin K: in USDA data, 100 g of boiled broccoli supplies 118% of the Daily Value and 100 g of raw gai lan 74%. The NIH Office of Dietary Supplements explains that people taking warfarin and similar anticoagulants need to keep their vitamin K intake consistent, because sudden changes can increase or decrease the drug’s effect. Broccolini is not off-limits; the point is steady amounts from week to week and a conversation with your clinician before a big change. See our vitamin K foods guide, and compare mustard greens and broccoli rabe, which USDA lists with even more vitamin K per 100 g.

Iodine, gas and allergy notes

• Goitrogens: the ODS iodine fact sheet lists cruciferous vegetables such as broccoli among foods high in goitrogens, which interfere with iodine uptake by the thyroid, but says that for most people with adequate iodine intakes who eat a variety of foods, reasonable amounts are not a concern. A 2024 systematic review of brassica vegetables reached a similar view. People with a thyroid condition can ask their clinician.
• Gas: NIDDK lists cruciferous vegetables among foods that may lead to excess gas; our gas and bloating guide explains why.
• Allergens: broccolini is not one of the nine major food allergens that US labels must declare, although any food can cause a reaction in some people.

Frequently Asked Questions

Questions about a label? Contact us or read our Buyer’s Guide. Food comes first; follow the label and ask a healthcare provider before starting a supplement, especially if you take medicines, are pregnant or have a food allergy. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Last reviewed October 2026.

Related guides: Broccoli Rabe (Rapini): Nutrition, Bitter Taste and How to Cook It, Broccoli: Nutrition, Benefits and Raw vs Cooked Facts, Foods High in Vitamin K: USDA List, K1 vs K2 and Warfarin Notes.