Lá Giang (River Leaf) is a type of leafy herb known for its naturally sour flavor. It is commonly cooked with chicken, shrimp, mudfish, or in sour soups, making it a refreshing dish during hot summer days. Compared to other sour ingredients like tamarind, dracontomelon, lime, or starfruit, lá giang offers a milder, more delicate taste.

Fresh and Freeze-Dried Lá Giang are popular cooking ingredients with a light, pleasant sourness, often used in soups with chicken, beef, pork, or various kinds of fish.