We all know the benefits of eating fruits, but the benefits get hampered on how the fruit was ripened. While it is best to let the fruit ripen on the tree, most often they are transported raw by the farmers. For such products, traders artificially ripen them mostly by chemicals such as ethephon and calcium carbide. These chemicals are highly toxic, harmful to the human body, and can lead to several diseases. If fruit looks evenly ripe or available before the season and has lesser flavor, chances are it is chemically treated.
Source: Vigyanprasar