Food

In this section we will add a new food to the Minecraft world: the Obsidian Apple, after eating this apple you can reply to hunger, but it will be poisoned. Contrary to what many people think, food is not a separate thing, it's just a special item for Minecraft.

Again, let's create a class that inherits Item.

public class ObsidianApple extends Item {
    private static final Food food = (new Food.Builder())
            .saturation(10)
            .hunger(20)
            .effect(() -> new EffectInstance(Effects.POISON, 3 * 20, 1), 1)
            .build();

    public ObsidianApple() {
        super(new Properties().food(food).group(ItemGroup.FOOD));
    }
}

We explain one line by one line.

We created a variable of type Food, which specifies some properties of this food, such as: saturation method sets the satiety level, hunger sets the hunger level to be restored, and effect method sets the potion effect that the food may have when eaten .Here we set the effect to Poisoning, with a duration of 60 ticks and potion level 1. The second parameter represents the likelihood of the effect triggering (think of the original raw chicken), here we set it to 1 for 100%.

Next up is the construction method, which I'm sure you're already familiar with.The only thing new is the .food(food) method, which indicates that the item is a food, and we ended up putting the item in the food creative tab.

Then we register our food under the name obsidian_apple:

public class ItemRegistry {
    public static final DeferredRegister<Item> ITEMS = DeferredRegister.create(ForgeRegistries.ITEMS, Utils.MOD_ID);
    public static final RegistryObject<Item> obsidianApple = ITEMS.register("obsidian_apple", ObsidianApple::new);
}

Then add the model obsdian_ingot.json:

{
  "parent": "item/generated",
  "textures": {
    "layer0": "boson:item/obsidian_apple"
  }
}

Then the textures obsidian_apple.png.

Take out your apples and try to eat them.

Source Code