Guava hails from Central America and both fruits and leaves from this tree are very useful. The rich antioxidant and other health nutrients present in the fruit help reduce level of blood sugar, improve heart conditions, provide relief to menstrual pain, support the digestive functions aid in weight loss along with many other benefits. Leafs of the guava are used to prepare herbal tea and its extract used for health supplement. Hard and fresh green guavas are also good for exercising the jaw muscles.