Red onion, originating from Spain, stands out for its flavor and nutritional properties. It is a traditional food in Mediterranean cuisine, especially recommended for eating raw, as this maximally preserves its valuable properties. This type of onion is rich in vitamins A, B1, C, and E, as well as minerals and folic acid, making it a health ally. Additionally, its diuretic and purifying properties make it ideal for inclusion in a balanced diet. It is also known for its digestive qualities and can serve as a healthy appetizer. For storage, it is advisable to keep them in a cool, dry, dark place, avoiding the fridge, as this may affect their aroma and flavor.