Credit: Getty Images Ah, the humble peanut. It's not the trendiest snack these days (that would be something covered in carmelized sea salt), but it does check a lot of boxes in the healthy snacks column. Grazing on nutritious food is one of the keys to staying (mostly) sane throughout the day. After all, coffee alone can't (and shouldn't!) be the only thing to keep our energy levels—and our moods—up. "The word 'snacking' can sometimes get a bad reputation," says Melissa Rifkin, MS, RD, CDN.