Guava is high in lycopene, an antioxidant that helps prevent prostate cancer and a lot of potassium (a medium-sized guava provides 688mg of potassium, 63% more than potassium in bananas). Guava is a delicious and crunchy fruit, high in fiber, vitamin C, A, zinc, potassium and manganese that foster the digestive system. According to nutritionists, the vitamin C in guava peels helps activate the production of collagen, the essential ingredient that strengthens joints, cartilage, is beneficial for the structure of the skin, helps maintain the amount of collagen in the skin, Keep the skin stable.