The Corn is the most usual food item that might spawn in your island when "the gods create you an island and send you in it to survive".
It only restores 1 hunger. However, it can be used to create a "Maxstamina potion", which adds 1 max stamina bar.
The corn is rather spammable and is a common seed to be given to you by the gods. Because it's food, it's a mediocre-good item to give to the gods in early-game, but then a bad sacrifice, so it would be mostly used as a potion ingredient.
You know what would be a good feature to the corn? Being able to cook it. Because the cooked apple gets an advantage of 2 hunger, so why not cooked corn and get 2 hunger from it? Wait, cooked corn is basically popcorn, right? So doesn't that mean you need the cooker, because popcorn + bucket = a bucket of popcorn! Imagine that! Eating a bucket full o' popcorn! Wait. TRIBALMEN WITH POPCORN!? WHAT HAS THIS WORLD COME TO!? -SealMaster50, after finding out you can't cook corn