Affordable, healthy options for when you’re feeling snacky. Snacks are a convenient way to satisfy cravings, but they’re also an opportunity to get more nutrients—depending on what you’re snacking on.

I'm a Brit who's bringing Trader Joe's foods on the seven-hour flight from New York to the UK. I'm gifting sweets like the store's dark-chocolate sea-salt caramels to my family for the holidays. I ...