How to use Enumeration to create a categorized Inventory System?

Hay guys, I am currently Creating an RPG game and I as wondering how I could use enumeration to create item categories (Weapons, Food, etc.) in my inventory. I am following a tutorial on how to create a inventory system (Create a Crafting & Inventory system in Unreal Engine 4 Pt 1: Inventory Widget & Basic pre-Setup - YouTube) however, it does not mention how to create item categories. Any Help would be greatly appreciated.

You know, probably no body will take time to watch that tutorial just to awnser your question. Does creation of enums or base classes for each type of item is not enough for this?