One who has good taste for food:

One who has good taste for food: Correct Answer Gourmet

The one word substitution is Gourmet.

Curator : a keeper or custodian of a museum or other collection.
Parasite : an organism which lives in or on another organism (its host) and benefits by deriving nutrients at the others expense.
Stoic : a person who can endure pain or hardship without showing their feelings or complaining.
Gourmet : a connoisseur of good food or a person with a discerning palate.

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Food which agrees with one's taste
During 2011, advertising expenditures on canned food products increased by 20 percent, while canned food consumption rose by 25 percent. Each of the following if true, could help to explain the increase in food consumption EXCEPT-
During 2011 advertising expenditures on canned food products increased by 20 percent, while canned food consumption rose by 25 percent. Each of the following ,if true, could help to explain the increase in food consumption EXCEPT ---