Watermelon is the first fruit, which has not only edible value, but also high medicinal value. It is a good product for quenching thirst and diuresis, and is known as "natural white tiger soup" among the people. When encountering extreme heat, especially fever, sleeping with watermelon is more effective than applying ice packs to cool down. But watermelon is cold, so you can't eat too much at a time.

Cucumber is one of the most nutritious melons and is known as "the medicine to save the world". Regular consumption of food that is conducive to the excretion of spoilage bacteria in the gastrointestinal tract is conducive to lowering cholesterol. In particular, the lips are often browned and the throat is dry. It is miraculous to eat tender cucumbers raw as fruits.

Wax gourd is rich in vitamin B, and both skin and flesh can be used as medicine. There is a folk saying that "winter melon enters the house, not the pharmacy". Drinking winter melon soup is the most effective for poor urination. Old people have indigestion in summer. Boiling soup with wax gourd, lotus seeds, lily and duck can relieve summer heat and stimulate appetite.

Luffa can clear away heat and disinfect, dredge meridians, and eliminate phlegm and dampness. Boiling soup with loofah almonds and chicken feet can cool off the heat and get rid of dampness. Summer prickly heat, if you take loofah juice orally, can cool blood and detoxify.

Summer is hot, and the diet of the elderly should clear away heat and toxic materials, quench thirst and induce diuresis. Seasonal melons and fruits are good companions for the elderly in summer.