Calling US MJ users! Visiting the States, what to stock up on?

Hello! Next month I'll be visiting the US from the UK and I was wondering if you had any supplements/side effect remedies/high protein snacks/whatever that is uniquely American that I should be stocking up on. For example, it is really hard to find Pepto in the UK, but I hear it's a lifesaver, so I'll def be buying a bottle! Anything else people can think of? Thanks!