Learn English – single word for one who eats the same food all the time

single-word-requests

Is there a single word for someone who always eats the same food?

E.g. Hard boiled egg for breakfast, tuna fish for lunch, chicken breast for dinner. Every day.

Best Answer

Monophagous (adjective):

feeding on or utilizing a single kind of food; especially : feeding on a single kind of plant or animal

Also what you have described above is a monotonous food schedule.

There is a condition called sitophobia:

Fear of eating due to the unpleasant symptoms (e.g., nausea, vomiting and abdominal pain) that follow eating due to chemotherapy (a feature of chemotherapy-induced anorexia); Unlike anorexia, there is an appetite, but it is curtailed by the anticipated emesis and nausea.

You can use it with selective to form "selective sitophobia."

Source: http://medical-dictionary.thefreedictionary.com