There is no such thing as “three kinds of people should not eat asparagus”. Asparagus is a healthy food, most people can eat in moderation. Asparagus is a very prominent low-calorie food, per 100g of asparagus calories about 20 calories, and tomatoes, cucumbers, and belong to the same low-calorie food. Meanwhile, asparagus is almost free of carbon and fat and rich in fiber. Fiber can slow down the absorption of sugar and fat, and increase the feeling of satiety. Asparagus is rich in vitamin B, vitamin A and trace elements such as folic acid, selenium, iron, manganese and zinc. Most notably, asparagus also has higher levels of selenium than the vast majority of foods, similar to mushrooms and comparable to seafood, for example. Although asparagus is a healthy food, it should be consumed in moderation. In addition, asparagus should not be used by people with allergies.