What term describes a sensitive and discriminating taste in food preferences?

The term that best describes a sensitive and discriminating taste in food preferences is "connoisseur." A connoisseur is an individual who has a deep knowledge and appreciation for a particular field, particularly in fine food and drink. This person typically displays refined tastes and can discern subtleties in flavor, quality, and presentation, which aligns closely with the idea of having a sensitive and discriminating palate.

While "gourmet" also pertains to high-quality food and sophisticated cuisine, it generally refers more to the food itself rather than the distinguished appreciation and expertise of the person enjoying it. "Epicurean" is similar but often associated with a broader love for pleasure, especially in relation to food and comfort, rather than emphasizing the refined taste aspect. "Carnivore" specifically refers to an organism that primarily consumes meat and does not relate to taste sensitivity or food preference in the same nuanced way.