Mangoes contain a variety of acids, but the primary acid found in mangoes is citric acid. Citric acid is a natural organic acid that gives mangoes their characteristic tartness and tangy flavor. It is also present in various other fruits, such as lemons, oranges, and pineapples. Apart from citric acid, mangoes also contain other acids, including malic acid and tartaric acid, although in smaller amounts. These acids contribute to the overall taste profile of mangoes and help enhance their flavor.