I'm an American living in the UK. I didn't expect grocery shopping to be filled with so many surprises.

I'm an American who moved to London, and I've been surprised by what groceries I can't find here.

Pamela Vachon

• Last year, I moved from New York City to London.
• I've been surprised by how different grocery shopping is in the UK.
• Some items I was used to buying in the US, like half-and-half, aren't available here.

Moving from New York City to London wasn't exactly a huge culture shock for me. The language and lifestyle are basically the same, and the only major...