Broccoli is a common green cauliflower. It is rich in nutrients, including protein, fat, phosphorus, iron, carotene, vitamin B 1, vitamin B2, vitamin C, vitamin A and so on. Especially vitamin C, which contains 88 mg per 100 g, is the highest among vegetables, second only to pepper. It contains 3.5g-4.5g of protein, which is 3 times that of cauliflower and 4 times that of tomato.