The Nauru article linked also points out that the large amount of mining has done away with most of what little arable land there was, making traditional garden culture impractical at scale. So, they sort of have to be dependent on foreign food imports, largely the kind you mention.

Always worth posting this classic.

I’m a tad jealous of people who got to do this. My work just got busier. It was like normal except people were dying and I had all my groceries delivered.