Guava is native to South America. The pear-shaped guava tastes and smells good, and it can eat not only fruits but also leaves, flowers, and roots, so there is nothing to throw away. It's been used for medicinal purposes for a long time, and it's called the Mysterious Fruit of mystery. Guava is rich in polyphenols, which helps diabetes by suppressing blood sugar rise, and is rich in vitamins and minerals such as vitamin A, vitamin C, potassium, calcium, and magnesium, which also helps skin beauty. Guava leaves also contain natural antihistamine, which helps improve rhinitis. There are no special side effects, but if you eat a lot, you may have diarrhea or indigestion because there are a lot of dietary fiber.