Winter Super Foods: Broccoli: Selection, Storage, Preparation, & Varieties
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Broccoli was first grown in the Italian province of Calabria and was given the name Calabrese. Today there are many varieties. In the United States, the most common type of broccoli is the Italian green or sprouting variety. Its green stalks are topped with umbrella-shaped clusters of purplish green florets.
Did You Know
That broccoli consumption has increased over 940 percent over the last 25 years! It's a good source of Vitamin A, and vitamin C, potassium, folacin, iron and fiber. Broccoli has as much calcium ounce per ounce as milk and contains a few important phytochemicals: beta-carotene, indoles and isothiocyanates. Phytochemicals prevent carcinogens (cancer causing substances) from forming. They also stop carcinogens from getting to target cells and help boost enzymes that detoxify carcinogens. So next time you sit down to eat and broccoli is on the menu. Remember it really is good for you!
Choose bunches that are dark green. Good color indicates high nutrient value. Florets that are dark green, purplish, or bluish green contain more beta-carotene and vitamin C than paler or yellowing ones. Choose bunches with stalks that are very firm. Stalks that bend or seem rubbery are of poor quality. Avoid broccoli with open, flowering, discolored, or water-soaked bud clusters and tough, woody stems.
Store broccoli unwashed, in an open plastic bag and place in the crisper drawer of refrigerator. It is best if used within a day or two after purchasing.
Fresh vs. Frozen
Packaged frozen broccoli differs from fresh in its nutrient content. The flower buds or florets are richer in beta-carotene than the stalks. Manufactures typically cut off most of the stalk before packaging it, so frozen broccoli may contain 35% more beta-carotene by weight than fresh broccoli. The downside is that frozen broccoli has twice as much sodium as fresh (up to 68 mg per 10 oz. package), about half the calcium, and smaller amounts of iron, thiamin, riboflavin, and vitamin C.
Preparation and Cooking
The best way to cook broccoli is to steam, cook in the microwave or stir-fry with a little broth or water. These methods are better than boiling. Some of the vitamin and mineral content are lost from the vegetable and end up in the cooking water when they are boiled. Cooked broccoli should be tender enough so that it can be pierced with a sharp knife, and still remain crisp and bright green in color.
From the Centers for Disease Control and Prevention (CDC), Updated 2005
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