Black boiled broccoli can lose weight because broccoli is low in calories, but you have to stick to it for a while to have an effect. Because broccoli belongs to low-calorie food, in which every 100 grams of edible broccoli contains 34 calories, plus the practice of boiling water is also a healthy low-salt, low-calorie eating methods, such as a meal to eat 500 grams of boiled broccoli, then about a meal of caloric intake of about 200 calories, and one day adults need to calories for about 1,500 calories, adhere to the consumption of a week of boiled broccoli, there can be a 1 -5 pounds of weight loss effect. However, when eating broccoli to lose weight, it is not advisable to eat cakes, fried food, milk tea, fat meat, spicy bars and other high-calorie foods.