Sense of taste affords human being to have ability to evaluate what it eats or drinks. At the most basic level, the evaluation is to promote ingestion of nutritious substances and prevent consumption of potential poisons or toxins. Food preferences and aversions involve the sense of taste and these phenomenon are mediated through central nervous system. Tongue also feels other sensations not generally included in basic tastes. These are largely detected by somatosensory system. Taste perception fades with ageing and there are many disorders which affect the sensation of taste. Thus, sensation of taste plays vital role in maintaining general wellbeing of an individual.