Most people might not know this but Broccoli is a food of great value. Broccoli, as well as other deep green, yellow and orange vegetables is a good source of beta-carotene, a substance that may prevent cancer. Broccoli also contains another possible cancer prevention compound, glucarate, as well as good amounts of vitamin C, calcium, potassium, and fiber. The next time you want to say, “I love you,” give your special someone a bouquet of broccoli.