Fish curry is one of the two most filling food items in the game, paralleling dodo stew. When eaten, fish curry fills a Blockhead'shunger bar nearly three quarters (3/4) of the way, and turns a Blockhead's filled hunger bar from green to golden (which appears yellow, actually). A golden food hunger bar shows that the Blockhead's hunger will remain stationary for a period of time, similar to an Blockhead's energy bar.
If a Blockhead's health is depleted, consuming a fish curry will restore 40% (2/5) of its total.
Consuming a fish curry returns a empty iron pot to the Blockhead's inventory.