I can scour the internet all day and look at suggestions for items that should be included in a bug out bag and never get bored. No list is exactly correct because a bug out bag is a very individual thing. There are a few items that should be in all bog out bags though. One item that is ofter overlooked is Pedialyte. That stuff is a like a magical potion for hydration. Just try some next time your hung over :).
Many add Gatorade to their kit to use for emergency hydration but Pedialyte should replace that used space. Pedialyte has much more potassium and a significantly less sugar than Gatorade. Sugar can make dehydrating diarrhea worse when your body is sucking up any hydration it can get. Pedialyte has been designed from the ground up simply to rehydrate when you need it the most. I see the container as a bonus too. When the contents run out you have a water bottle. If your feel that the Pedialyte bottle is too bulky if you have a smaller BOB then there is another option. Pedialyte comes in powder form as well. You can get it in singles packages which are much easier to carry. Put a few of those in your first-aid kits.
Hydration is the single most important factor in your survivability. In a dire situation a simple stomach virus can kill you. It would behoove any prepper to take my advice and add this wonder fluid to your preps. I keep short barrels stocked with kits in my garage and each barrel will have a bottle and a singles pack in it by the time this week it over. The singles need to be in your EDC (Every Day Carry) kit too. Pickle juice is also another super hydrator but is much less practical to stock.
Get your Pedialyte because when you have to bug out of your home because the zombies are taking over you will need to emergency hydrate at some point. Besides, how are you going to put some lead in a zed head when your are suffering from the effects of dehydration. Dehydration is a quick way to become a zombie and zombies will be met with by carbine. Don't be on the wrong end of someone's gun just because you forgot your Pedialyte.