2. "Futian Wuguo" grapes. "From a distance, the duck head of Hanshui River is green, just like the newly picked grapes." When it comes to grapes, everyone is familiar with them. Black-purple grapes are like black pearls and are called "treasures in fruits". They are sweet and sour, juicy and have extremely high nutritional value. The sugar content of grapes in mature berries is as high as 10%-30%. Melatonin contained in grapes can help sleep. Therefore, when the dog days come and the weather is hot, many people will not sleep well. Eat more alkaline fruit grapes to soothe the nerves and help sleep.

3. Blueberries with five fruits in five days. July is the season when blueberries are on the market in large quantities. Blueberry is a kind of fruit with high nutritional value, sweet and sour taste and deep purple color. Although small, they are all treasures, and they are called "the king of berries". They are rich in a variety of amino acids, sugars, vitamins, minerals and dietary fiber, and have good anti-oxidation, anti-aging, eyesight protection and immunity enhancement effects. Therefore, when the dog days come, we should eat more alkaline fruit blueberries.