2. Sour plum powder originated in Shaanxi Province and is a specialty of Shaanxi Province. It is a solid powder beverage made of sour plum and hawthorn as raw materials, boiled to get juice, and added with various auxiliary materials such as osmanthus. Because it contains dark plum, it has the effects of promoting fluid production, quenching thirst, relieving summer heat, invigorating spleen, appetizing, preventing fire and refreshing. Prunes are rich in anthocyanins, which are phytochemicals that can help the body effectively excrete fats and toxins.