The best way to avoid derailing your diet when you're on the go is to plan ahead. We've tracked down the best portable options, many of which you may already have in your fridge or pantry, so you’ll be prepared next time hunger strikes.

If you're going on an airplane…bring nuts
You never know when your next meal will be when you're traveling, so be sure to pack snacks in your carry-on. You want something that will travel well. That means no leaky, smelly or refrigeration-required foods––your seatmate will thank you! Nuts are high in protein, so they'll keep you satisfied longer. Just remember, they're also high in fat––albeit the good kind––so pay attention to portion size or look for single-serving packs.