2. Watermelon, a fruit in summer, has a sweet pulp and can cool down and get rid of summer heat; Seeds contain oil and can be used as recreational food; The pericarp is medicinal, and has the effects of clearing heat, diuresis and lowering blood pressure.
3. Longan is one of the famous fruit trees in the south and southeast of China, which is often compared with litchi. Longan is rich in glucose, sucrose, protein, etc., and its iron content is relatively high, which can improve heat energy and supplement nutrition.
4. Mango, a large evergreen tree of Uraceae, is native to India. Mango fruit contains sugar, protein and crude fiber. The precursor carotene of vitamin A contained in mango is extremely high, which is rare among all fruits.
5. Guava, originally a wild fruit, matured in summer, but later planted artificially. Guava is a tropical fruit tree with strong adaptability, which originated in tropical America. It spread to tropical and subtropical regions of the world in the16-17th century and was introduced to China at the end of17th century.