Take five – Medifast Crunch Bars, that is! You can enjoy up to five of these tasty Medifast Meals each day on the 5 & 1 Plan! Medifast Crunch Bars feature a great crunchy taste and a formula that’s lower in calories, total fat, and carbohydrates than Medifast Maintenance Bars. That means they’re completely interchangeable with other Medifast Meals. Keep some in your purse, desk, and car, and enjoy a delicious, satisfying emergency Meal whenever you’re on the go, stuck at work, or in traffic.