Broccoli contains glucosinolates, phytochemicals which break down to compounds called indoles and isothiocyanates. Broccoli also contains the carotenoid, lutein. Broccoli is an excellent source of the vitamins K, C, and A, as well as folate and fiber. Broccoli is a very good source of phosphorus, potassium, magnesium and the vitamins B6 and E.

Broccoli is a plant of the Cabbage family. Broccoli possesses abundant fleshy flower heads, usually green in color, arranged in a tree-like fashion on branches sprouting from a thick, edible stalk.