The question of whether it is possible to eat a cactus sounds like a joke or a plot from an adventure novel, however, for biologists, gastronomists, and ethnographers, it has long become a subject of serious study. These spiny plants, found in arid regions of both Americas, possess amazing properties that combine adaptability to extreme environments with nutritional value. Their consumption as food is not a myth but a part of the cultural traditions of many peoples. The Biological Nature of Cacti Cacti belong to the family Cactaceae, which includes over two thousand species. Their biological uniqueness lies in their ability to survive where most plants perish. Thick, fleshy stems covered with spines serve not only as protection but also as a reservoir of water. The internal tissue of the plant is rich in mucous substances and carbohydrates, allowing it to retain water for a long time. Interestingly, cacti do not have conventional leaves. Photosynthesis occurs in green stems, making them resemble living laboratories that convert solar energy. It is this tissue that forms the basis for some dishes used in the cuisines of Mexico and South America. Eatable Species and Their Characteristics Despite the fact that most cacti are covered with spines and contain bitter or toxic substances, some species are perfectly suitable for consumption. The most well-known example is the prickly pear — a plant with flat, juicy stems resembling leaves. In cuisine, they are called nopales and are considered an important part of Mexican cuisine. After removing the spines and peel, the flesh of the prickly pear becomes soft with a slight acidity and herbal notes. It can be fried, boiled, dried, or eaten raw. The fruits are also edible — sweet, with a delicate aroma, known as "tuna". They are rich in vitamin C, fiber, and antioxidants, making them not only tasty but also healthy. However, not all representatives of the family are safe. Some species contain alkaloids and oxalates that can cau ... Read more