Cactus is edible, but should be eaten in moderation. As a common plant, cactus is rich in protein, vitamins, carotenoids, calcium, magnesium, potassium and other nutrients, and its stems and leaves contain polysaccharides, triterpenoid compounds, malic acid, glauconic acid, resins, tartaric acid and quercetin, which are of high nutritional value. Cactus can be used to prepare a wide range of foods. The fleshy part of the cactus can be made into a variety of delicious dishes, such as honey cactus, tomato cactus, etc. The petals of the cactus can also be made into salads or used as a side dish, such as raw mixed cactus. Note that the consumption of cactus should be moderate, so as not to affect the health of the body, the emergence of discomfort timely treatment.