Definition of Bitter:
Plants with a predominantly bitter taste due to the presence of a variety of chemical constituents. The action is mediated by the bitter-sensitive taste buds in the mouth and will enhance the whole upper digestive function and improves assimilation of nutrients into the system [Sanchez BOTM680].
Stimulates liver function and digestive function. Must taste them for them to be effective. If you don't like bitters, it is because you need them! [Palmer2004].