Consumables

Food Items are more than just delectable things to munch on or keep away hunger and thirst. I they can be eaten during battle to give small bonus.

The most common kind of Food Items are Berries, but they are not the only kind of Foods that can be used this way. Candy Bars, and maybe even honey, are common enough that most PokéMarts have them in stock, but Leftovers, Black Sludge, and other items like that are  generally only found in specialized shops.

Snacks
Snacks are Food Items that Pokémon can use as Held Items. Pokémon can consume their snacks as a Standard Action at any time, or as a Free Action if they are at 50% HP or lower. Trainers always consume snacks as a Standard Action.