Consumable for items can't work.

Minecraft Version 1.21.1 Core Leaf Plugin Version 5.9.1

for this, like wiki

DRAN:
  Id: dragon_breath
  Model: 10000
  Display: '<#c127c1>D<#c04abd>R<#be6cb8>A<#bd8fb4>N'
  Lore:
    - '...'
  Consumable:
    ConsumeSeconds: 2
    HasParticles: false
    Animation: EAT
    Sound: item.honey_bottle.drink
    ConsumeEffects:
    - potion{type=strength;d=1200;level=2}
    - potion{type=resistance;d=1200;level=1}
    - potion{type=speed;d=1200;level=0}
  Food:
    Nutrition: 4
    Saturation: 8
    CanAlwaysEat: true
  Options:
    Glint: true
    FireResistant: true
    StackSize: 99