An aversion of unfamiliar tastes: Somehow Tim, suffering from geumaphobia, always avoided anything new to eat, fearing that the food would be unpleasant or even bad, and therefore there were only a very few restaurants he would go to.

There is a disorder known as "gustatory agnosia", in which food becomes very bland or even has a disgusting flavor. People who have this condition may also lose their ability to smell or may find that formerly pleasant odors have become offensive.

With an inability to smell, such phobics may fear that since they can no longer smell previous items, they might be eating or drinking something that formerly caused them anxieties.