Guava is rich in nutrients, can increase appetite, promote the growth and development of children, and contains protein, fat, sugar, vitamin A, B vitamins, vitamin C, calcium, phosphorus, and iron. Guava has high nutritional value. In terms of vitamin C, it is higher than citrus, banana, papaya, tomato, watermelon, and pineapple. It is also rich in iron, calcium, and phosphorus. The iron content in the seeds is higher than that of other fruits, so it is the best Can eat together. Eating more can prevent aging and eliminate toxins from the body.