Consumable
Consumable items represent a variety of foods and beverages. Each can be used once and must then be discardedDiscardCards are discarded to a separate discard stack. Dice return to the supply. Defeated enemy chips go to a defeated enemy stack. Other chips go to the appropriate draw bag or supply.. However, often have effects that can benefit multiple party membersPartyThe party can include both adventurer and companion units.. If a is discarded during the End of Day Phase's Adventurers RestEncounter PhaseThe party resolves the encounter it triggered during the previous phase. step (which is required if playing on Expert DifficultyExpertThis is the hardest difficulty. Adventurers gain 2 fatigue for each additional engage action taken in battle. To resolve their individual Adventurers Rest step, an adventurer must discard an item. Adventurers remove 1 die from their cooldown track and heal for 1 HP during the Adventurers Rest step at the end of each day.), the adventurerAdventurerEach character created by a player is an Adventurer. Each adventurer is a party member. may also resolve that item's effects (if applicable).
Do you get the effect of a consumable item when other effects cause you to discard it?
No. You have to use the item to get its effect. Though discarding it is part of using it, something else forcing you to discard it does not trigger its use.
SourceIs it allowed to use items mid/during an engage?
No, items cannot be used mid-engage.
Source