There are approximately 9,000 taste buds on the surface of the tongue, in the throat, and on the roof of the mouth alone. Taste buds contain chemoreceptors that respond to chemicals from food and other substances that are dissolved by the saliva in the mouth. From time to time we may experience the feeling of unpleasant or strange odd taste in the mouth. Like all, it has its cause and tends to be temporary improving when the underlying cause is remedied. Dysgeusia or unpleasant taste sensations range from metallic to salty or bitter and vary in severity. Can be caused by infections, inflammation, injury, environmental factors or indicate vitamin deficiency. If it persists it’s worth checking out.